238540790 has 32 divisors (see below), whose sum is σ = 438025536. Its totient is φ = 93513600.

The previous prime is 238540769. The next prime is 238540811. The reversal of 238540790 is 97045832.

It is an interprime number because it is at equal distance from previous prime (238540769) and next prime (238540811).

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, 102884 + ... + 105176.

It is an arithmetic number, because the mean of its divisors is an integer number (13688298).

Almost surely, 2^238540790 is an apocalyptic number.

238540790 is a deficient number, since it is larger than the sum of its proper divisors (199484746).

238540790 is a wasteful number, since it uses less digits than its factorization.

238540790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 238540790 is about 15444.7657800305. The cubic root of 238540790 is about 620.1844664428.

The spelling of 238540790 in words is "two hundred thirty-eight million, five hundred forty thousand, seven hundred ninety".