42231938 has 16 divisors (see below), whose sum is σ = 73116864. Its totient is φ = 17919600.

The previous prime is 42231929. The next prime is 42231967. The reversal of 42231938 is 83913224.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13520 + ... + 16347.

It is an arithmetic number, because the mean of its divisors is an integer number (4569804).

Almost surely, 2^42231938 is an apocalyptic number.

42231938 is a deficient number, since it is larger than the sum of its proper divisors (30884926).

42231938 is a wasteful number, since it uses less digits than its factorization.

42231938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29977.

The product of its digits is 10368, while the sum is 32.

The square root of 42231938 is about 6498.6104668614. The cubic root of 42231938 is about 348.2413495105.

The spelling of 42231938 in words is "forty-two million, two hundred thirty-one thousand, nine hundred thirty-eight".