40163908 has 12 divisors (see below), whose sum is σ = 70336000. Its totient is φ = 20067912.

The previous prime is 40163899. The next prime is 40163933. The reversal of 40163908 is 80936104.

It is a super-2 number, since 2×40163908² = 3226279011664928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40163908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5485 + ... + 10507.

Almost surely, 2^40163908 is an apocalyptic number.

It is an amenable number.

40163908 is a deficient number, since it is larger than the sum of its proper divisors (30172092).

40163908 is a wasteful number, since it uses less digits than its factorization.

40163908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7026 (or 7024 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 40163908 is about 6337.5001380671. The cubic root of 40163908 is about 342.4616839585.

The spelling of 40163908 in words is "forty million, one hundred sixty-three thousand, nine hundred eight".