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406061768 = 23719381637
BaseRepresentation
bin11000001101000…
…000001011001000
31001022002002000202
4120031000023020
51312422434033
6104143151332
713030316360
oct3015001310
91038062022
10406061768
11199236242
12b3ba5548
1366184748
143bd019a0
15259ae8e8
hex183402c8

406061768 has 32 divisors (see below), whose sum is σ = 915931200. Its totient is φ = 164866752.

The previous prime is 406061767. The next prime is 406061783. The reversal of 406061768 is 867160604.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (406061767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189755 + ... + 191882.

It is an arithmetic number, because the mean of its divisors is an integer number (28622850).

Almost surely, 2406061768 is an apocalyptic number.

It is an amenable number.

406061768 is an abundant number, since it is smaller than the sum of its proper divisors (509869432).

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

406061768 is a wasteful number, since it uses less digits than its factorization.

406061768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381669 (or 381665 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 406061768 is about 20150.9743685014. The cubic root of 406061768 is about 740.5096124439.

The spelling of 406061768 in words is "four hundred six million, sixty-one thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 381637 763274 1526548 2671459 3053096 5342918 7251103 10685836 14502206 21371672 29004412 50757721 58008824 101515442 203030884 406061768