238023738 has 32 divisors (see below), whose sum is σ = 543241920. Its totient is φ = 77196240.

The previous prime is 238023719. The next prime is 238023763. The reversal of 238023738 is 837320832.

It is a super-4 number, since 4×238023738⁴ (a number of 35 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57568 + ... + 61563.

It is an arithmetic number, because the mean of its divisors is an integer number (16976310).

Almost surely, 2^238023738 is an apocalyptic number.

238023738 is an abundant number, since it is smaller than the sum of its proper divisors (305218182).

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

238023738 is a wasteful number, since it uses less digits than its factorization.

238023738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119179 (or 119173 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 238023738 is about 15428.0179543582. The cubic root of 238023738 is about 619.7360461578.

The spelling of 238023738 in words is "two hundred thirty-eight million, twenty-three thousand, seven hundred thirty-eight".