40164656 has 20 divisors (see below), whose sum is σ = 88936272. Its totient is φ = 17213376.

The previous prime is 40164643. The next prime is 40164661. The reversal of 40164656 is 65646104.

It is a super-2 number, since 2×40164656² = 3226399183196672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179195 + ... + 179418.

Almost surely, 2^40164656 is an apocalyptic number.

It is an amenable number.

40164656 is an abundant number, since it is smaller than the sum of its proper divisors (48771616).

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

40164656 is a wasteful number, since it uses less digits than its factorization.

40164656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358628 (or 358622 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 40164656 is about 6337.5591515977. The cubic root of 40164656 is about 342.4638099115.

The spelling of 40164656 in words is "forty million, one hundred sixty-four thousand, six hundred fifty-six".