56744138 has 16 divisors (see below), whose sum is σ = 93181536. Its totient is φ = 25701840.

The previous prime is 56744137. The next prime is 56744143. The reversal of 56744138 is 83144765.

56744138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (56744137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2045 + ... + 10847.

It is an arithmetic number, because the mean of its divisors is an integer number (5823846).

Almost surely, 2^56744138 is an apocalyptic number.

56744138 is a deficient number, since it is larger than the sum of its proper divisors (36437398).

56744138 is a wasteful number, since it uses less digits than its factorization.

56744138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9109.

The product of its digits is 80640, while the sum is 38.

The square root of 56744138 is about 7532.8705020065. The cubic root of 56744138 is about 384.2734100659.

The spelling of 56744138 in words is "fifty-six million, seven hundred forty-four thousand, one hundred thirty-eight".