238788688 has 10 divisors (see below), whose sum is σ = 462653114. Its totient is φ = 119394336.

The previous prime is 238788673. The next prime is 238788689. The reversal of 238788688 is 886887832.

It can be written as a sum of positive squares in only one way, i.e., 149523984 + 89264704 = 12228^2 + 9448^2 .

It is a super-2 number, since 2×238788688² = 114040075033522688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238788689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7462131 + ... + 7462162.

Almost surely, 2^238788688 is an apocalyptic number.

It is an amenable number.

238788688 is a deficient number, since it is larger than the sum of its proper divisors (223864426).

238788688 is a wasteful number, since it uses less digits than its factorization.

238788688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14924301 (or 14924295 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 58.

The square root of 238788688 is about 15452.7890039306. The cubic root of 238788688 is about 620.3992295194.

The spelling of 238788688 in words is "two hundred thirty-eight million, seven hundred eighty-eight thousand, six hundred eighty-eight".