238740688 has 20 divisors (see below), whose sum is σ = 466095168. Its totient is φ = 118458080.

The previous prime is 238740679. The next prime is 238740709. The reversal of 238740688 is 886047832.

238740688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×238740688² = 113994232213426688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54856 + ... + 59047.

Almost surely, 2^238740688 is an apocalyptic number.

It is an amenable number.

238740688 is a deficient number, since it is larger than the sum of its proper divisors (227354480).

238740688 is a wasteful number, since it uses less digits than its factorization.

238740688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114042 (or 114036 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 238740688 is about 15451.2358081805. The cubic root of 238740688 is about 620.3576569769.

The spelling of 238740688 in words is "two hundred thirty-eight million, seven hundred forty thousand, six hundred eighty-eight".