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40074664 = 237739803
BaseRepresentation
bin1001100011011…
…1110110101000
32210102000002211
42120313312220
540224342124
63550534504
7664425520
oct230676650
983360084
1040074664
1120691763
1211507434
1383c1826
145472680
1537b8e94
hex2637da8

40074664 has 32 divisors (see below), whose sum is σ = 87059520. Its totient is φ = 16937856.

The previous prime is 40074649. The next prime is 40074701. The reversal of 40074664 is 46647004.

It is a super-3 number, since 3×400746643 (a number of 24 digits) contains 333 as substring.

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, 814 + ... + 8989.

It is an arithmetic number, because the mean of its divisors is an integer number (2720610).

Almost surely, 240074664 is an apocalyptic number.

It is an amenable number.

40074664 is an abundant number, since it is smaller than the sum of its proper divisors (46984856).

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

40074664 is a wasteful number, since it uses less digits than its factorization.

40074664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9889 (or 9885 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 40074664 is about 6330.4552758866. The cubic root of 40074664 is about 342.2078464817.

The spelling of 40074664 in words is "forty million, seventy-four thousand, six hundred sixty-four".

Divisors: 1 2 4 7 8 14 28 56 73 146 292 511 584 1022 2044 4088 9803 19606 39212 68621 78424 137242 274484 548968 715619 1431238 2862476 5009333 5724952 10018666 20037332 40074664