42238658 has 16 divisors (see below), whose sum is σ = 78992064. Its totient is φ = 16456560.

The previous prime is 42238643. The next prime is 42238661. The reversal of 42238658 is 85683224.

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, 136985 + ... + 137292.

It is an arithmetic number, because the mean of its divisors is an integer number (4937004).

Almost surely, 2^42238658 is an apocalyptic number.

42238658 is a deficient number, since it is larger than the sum of its proper divisors (36753406).

42238658 is a wasteful number, since it uses less digits than its factorization.

42238658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274297.

The product of its digits is 92160, while the sum is 38.

The square root of 42238658 is about 6499.1274799007. The cubic root of 42238658 is about 348.2598194006.

The spelling of 42238658 in words is "forty-two million, two hundred thirty-eight thousand, six hundred fifty-eight".