42238056 has 32 divisors (see below), whose sum is σ = 120680640. Its totient is φ = 12067968.

The previous prime is 42238039. The next prime is 42238067. The reversal of 42238056 is 65083224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125541 + ... + 125876.

It is an arithmetic number, because the mean of its divisors is an integer number (3771270).

Almost surely, 2^42238056 is an apocalyptic number.

It is an amenable number.

42238056 is an abundant number, since it is smaller than the sum of its proper divisors (78442584).

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

42238056 is a wasteful number, since it uses less digits than its factorization.

42238056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251433 (or 251429 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 42238056 is about 6499.0811658264. The cubic root of 42238056 is about 348.2581648862.

The spelling of 42238056 in words is "forty-two million, two hundred thirty-eight thousand, fifty-six".