238997288 has 32 divisors (see below), whose sum is σ = 475531560. Its totient is φ = 112220160.

The previous prime is 238997261. The next prime is 238997293. The reversal of 238997288 is 882799832.

It can be written as a sum of positive squares in 4 ways, for example, as 238949764 + 47524 = 15458^2 + 218^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69170 + ... + 72542.

Almost surely, 2^238997288 is an apocalyptic number.

It is an amenable number.

238997288 is a deficient number, since it is larger than the sum of its proper divisors (236534272).

238997288 is a wasteful number, since it uses less digits than its factorization.

238997288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917 (or 3913 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 56.

The square root of 238997288 is about 15459.5371211431. The cubic root of 238997288 is about 620.5798321740.

The spelling of 238997288 in words is "two hundred thirty-eight million, nine hundred ninety-seven thousand, two hundred eighty-eight".