40423624 has 16 divisors (see below), whose sum is σ = 75931020. Its totient is φ = 20175360.

The previous prime is 40423609. The next prime is 40423633. The reversal of 40423624 is 42632404.

It can be written as a sum of positive squares in 2 ways, for example, as 40322500 + 101124 = 6350^2 + 318^2 .

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, 484 + ... + 9004.

Almost surely, 2^40423624 is an apocalyptic number.

It is an amenable number.

40423624 is a deficient number, since it is larger than the sum of its proper divisors (35507396).

40423624 is a wasteful number, since it uses less digits than its factorization.

40423624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9120 (or 9116 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 40423624 is about 6357.9575336738. The cubic root of 40423624 is about 343.1982636028.

The spelling of 40423624 in words is "forty million, four hundred twenty-three thousand, six hundred twenty-four".