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401086464 = 211397673
BaseRepresentation
bin10111111010000…
…001100000000000
31000221201022012020
4113322001200000
51310134231324
6103444401440
712640115202
oct2772014000
91027638166
10401086464
11196448219
12b23a6280
1365131c8c
143b3a8772
152532a679
hex17e81800

401086464 has 96 divisors (see below), whose sum is σ = 1081931760. Its totient is φ = 132120576.

The previous prime is 401086417. The next prime is 401086471. The reversal of 401086464 is 464680104.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595632 + ... + 596304.

Almost surely, 2401086464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401086464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540965880).

401086464 is an abundant number, since it is smaller than the sum of its proper divisors (680845296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401086464 is an equidigital number, since it uses as much as digits as its factorization.

401086464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 401086464 is about 20027.1431811929. The cubic root of 401086464 is about 737.4727912590.

The spelling of 401086464 in words is "four hundred one million, eighty-six thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 97 128 192 194 256 291 384 388 512 582 673 768 776 1024 1164 1346 1536 1552 2019 2048 2328 2692 3072 3104 4038 4656 5384 6144 6208 8076 9312 10768 12416 16152 18624 21536 24832 32304 37248 43072 49664 64608 65281 74496 86144 99328 129216 130562 148992 172288 195843 198656 258432 261124 297984 344576 391686 516864 522248 595968 689152 783372 1033728 1044496 1378304 1566744 2067456 2088992 3133488 4134912 4177984 6266976 8355968 12533952 16711936 25067904 33423872 50135808 66847744 100271616 133695488 200543232 401086464