42724256 has 24 divisors (see below), whose sum is σ = 84639744. Its totient is φ = 21228480.

The previous prime is 42724237. The next prime is 42724273. The reversal of 42724256 is 65242724.

42724256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1121 + ... + 9311.

It is an arithmetic number, because the mean of its divisors is an integer number (3526656).

Almost surely, 2^42724256 is an apocalyptic number.

It is an amenable number.

42724256 is a deficient number, since it is larger than the sum of its proper divisors (41915488).

42724256 is a wasteful number, since it uses less digits than its factorization.

42724256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8364 (or 8356 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 42724256 is about 6536.3794259513. The cubic root of 42724256 is about 349.5893305780.

The spelling of 42724256 in words is "forty-two million, seven hundred twenty-four thousand, two hundred fifty-six".