238481790 has 32 divisors (see below), whose sum is σ = 592094880. Its totient is φ = 61401984.

The previous prime is 238481777. The next prime is 238481809. The reversal of 238481790 is 97184832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136189 + ... + 137928.

It is an arithmetic number, because the mean of its divisors is an integer number (18502965).

Almost surely, 2^238481790 is an apocalyptic number.

238481790 is an abundant number, since it is smaller than the sum of its proper divisors (353613090).

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

238481790 is a wasteful number, since it uses less digits than its factorization.

238481790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274156.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 238481790 is about 15442.8556297079. The cubic root of 238481790 is about 620.1333306732.

The spelling of 238481790 in words is "two hundred thirty-eight million, four hundred eighty-one thousand, seven hundred ninety".