40170956 has 12 divisors (see below), whose sum is σ = 80341968. Its totient is φ = 17216112.

The previous prime is 40170943. The next prime is 40170961. The reversal of 40170956 is 65907104.

It is a happy number.

40170956 is an admirable number.

It is a super-2 number, since 2×40170956² = 3227411411907872, 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, 717311 + ... + 717366.

It is an arithmetic number, because the mean of its divisors is an integer number (6695164).

Almost surely, 2^40170956 is an apocalyptic number.

It is an amenable number.

40170956 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40170956 is a wasteful number, since it uses less digits than its factorization.

40170956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434688 (or 1434686 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 40170956 is about 6338.0561688896. The cubic root of 40170956 is about 342.4817146187.

The spelling of 40170956 in words is "forty million, one hundred seventy thousand, nine hundred fifty-six".