56433728 has 28 divisors (see below), whose sum is σ = 120601740. Its totient is φ = 26045952.

The previous prime is 56433721. The next prime is 56433731. The reversal of 56433728 is 82733465.

It can be written as a sum of positive squares in 2 ways, for example, as 23348224 + 33085504 = 4832^2 + 5752^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 56433691 and 56433700.

It is not an unprimeable number, because it can be changed into a prime (56433721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33083 + ... + 34746.

It is an arithmetic number, because the mean of its divisors is an integer number (4307205).

Almost surely, 2^56433728 is an apocalyptic number.

It is an amenable number.

56433728 is an abundant number, since it is smaller than the sum of its proper divisors (64168012).

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

56433728 is a wasteful number, since it uses less digits than its factorization.

56433728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67854 (or 67844 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 56433728 is about 7512.2385478631. The cubic root of 56433728 is about 383.5714257906.

The spelling of 56433728 in words is "fifty-six million, four hundred thirty-three thousand, seven hundred twenty-eight".