40396924 has 24 divisors (see below), whose sum is σ = 73993248. Its totient is φ = 19261440.

The previous prime is 40396921. The next prime is 40396927. The reversal of 40396924 is 42969304.

It is an interprime number because it is at equal distance from previous prime (40396921) and next prime (40396927).

It is a super-2 number, since 2×40396924² = 3263822937323552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40396921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52704 + ... + 53464.

It is an arithmetic number, because the mean of its divisors is an integer number (3083052).

Almost surely, 2^40396924 is an apocalyptic number.

It is an amenable number.

40396924 is a deficient number, since it is larger than the sum of its proper divisors (33596324).

40396924 is a wasteful number, since it uses less digits than its factorization.

40396924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 40396924 is about 6355.8574559221. The cubic root of 40396924 is about 343.1226855871.

The spelling of 40396924 in words is "forty million, three hundred ninety-six thousand, nine hundred twenty-four".