40624372 has 12 divisors (see below), whose sum is σ = 73014340. Its totient is φ = 19763136.

The previous prime is 40624357. The next prime is 40624393. The reversal of 40624372 is 27342604.

It can be written as a sum of positive squares in 2 ways, for example, as 21492496 + 19131876 = 4636^2 + 4374^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40624372.

It is a congruent number.

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, 137097 + ... + 137392.

Almost surely, 2^40624372 is an apocalyptic number.

It is an amenable number.

40624372 is a deficient number, since it is larger than the sum of its proper divisors (32389968).

40624372 is a wasteful number, since it uses less digits than its factorization.

40624372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274530 (or 274528 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 40624372 is about 6373.7251274274. The cubic root of 40624372 is about 343.7654453886.

Adding to 40624372 its reverse (27342604), we get a palindrome (67966976).

The spelling of 40624372 in words is "forty million, six hundred twenty-four thousand, three hundred seventy-two".