40374864 has 60 divisors (see below), whose sum is σ = 119647476. Its totient is φ = 12665856.

The previous prime is 40374857. The next prime is 40374869. The reversal of 40374864 is 46847304.

It can be written as a sum of positive squares in 2 ways, for example, as 13749264 + 26625600 = 3708^2 + 5160^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40374869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5799 + ... + 10694.

Almost surely, 2^40374864 is an apocalyptic number.

It is an amenable number.

40374864 is an abundant number, since it is smaller than the sum of its proper divisors (79272612).

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

40374864 is a wasteful number, since it uses less digits than its factorization.

40374864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16524 (or 16515 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 40374864 is about 6354.1218118635. The cubic root of 40374864 is about 343.0602166008.

The spelling of 40374864 in words is "forty million, three hundred seventy-four thousand, eight hundred sixty-four".