238139994 has 16 divisors (see below), whose sum is σ = 476431200. Its totient is φ = 79354800.

The previous prime is 238139987. The next prime is 238140127. The reversal of 238139994 is 499931832.

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, 34644 + ... + 40944.

It is an arithmetic number, because the mean of its divisors is an integer number (29776950).

Almost surely, 2^238139994 is an apocalyptic number.

238139994 is an abundant number, since it is smaller than the sum of its proper divisors (238291206).

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

238139994 is a wasteful number, since it uses less digits than its factorization.

238139994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12605.

The product of its digits is 419904, while the sum is 48.

The square root of 238139994 is about 15431.7851851301. The cubic root of 238139994 is about 619.8369272823.

The spelling of 238139994 in words is "two hundred thirty-eight million, one hundred thirty-nine thousand, nine hundred ninety-four".