42256624 has 10 divisors (see below), whose sum is σ = 81872240. Its totient is φ = 21128304.

The previous prime is 42256607. The next prime is 42256631. The reversal of 42256624 is 42665224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320504 + ... + 1320535.

It is an arithmetic number, because the mean of its divisors is an integer number (8187224).

Almost surely, 2^42256624 is an apocalyptic number.

It is an amenable number.

42256624 is a deficient number, since it is larger than the sum of its proper divisors (39615616).

42256624 is a wasteful number, since it uses less digits than its factorization.

42256624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641047 (or 2641041 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 42256624 is about 6500.5095184916. The cubic root of 42256624 is about 348.3091892537.

The spelling of 42256624 in words is "forty-two million, two hundred fifty-six thousand, six hundred twenty-four".