238739028 has 48 divisors (see below), whose sum is σ = 639690240. Its totient is φ = 68536800.

The previous prime is 238738999. The next prime is 238739071. The reversal of 238739028 is 820937832.

238739028 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 45088 + ... + 50103.

It is an arithmetic number, because the mean of its divisors is an integer number (13326880).

Almost surely, 2^238739028 is an apocalyptic number.

It is an amenable number.

238739028 is an abundant number, since it is smaller than the sum of its proper divisors (400951212).

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

238739028 is a wasteful number, since it uses less digits than its factorization.

238739028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95228 (or 95226 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 238739028 is about 15451.1820907010. The cubic root of 238739028 is about 620.3562191602.

The spelling of 238739028 in words is "two hundred thirty-eight million, seven hundred thirty-nine thousand, twenty-eight".