56442748 has 12 divisors (see below), whose sum is σ = 99793792. Its totient is φ = 27930240.

The previous prime is 56442731. The next prime is 56442761. The reversal of 56442748 is 84724465.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 56442748.

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, 72348 + ... + 73123.

Almost surely, 2^56442748 is an apocalyptic number.

It is an amenable number.

56442748 is a deficient number, since it is larger than the sum of its proper divisors (43351044).

56442748 is a wasteful number, since it uses less digits than its factorization.

56442748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145572 (or 145570 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 56442748 is about 7512.8388775482. The cubic root of 56442748 is about 383.5918605558.

The spelling of 56442748 in words is "fifty-six million, four hundred forty-two thousand, seven hundred forty-eight".