239139464 has 32 divisors (see below), whose sum is σ = 468720000. Its totient is φ = 114166272.

The previous prime is 239139463. The next prime is 239139479. The reversal of 239139464 is 464931932.

It is not an unprimeable number, because it can be changed into a prime (239139463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170237 + ... + 171635.

It is an arithmetic number, because the mean of its divisors is an integer number (14647500).

Almost surely, 2^239139464 is an apocalyptic number.

It is an amenable number.

239139464 is a deficient number, since it is larger than the sum of its proper divisors (229580536).

239139464 is a wasteful number, since it uses less digits than its factorization.

239139464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357 (or 2353 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The square root of 239139464 is about 15464.1347640274. The cubic root of 239139464 is about 620.7028657432.

The spelling of 239139464 in words is "two hundred thirty-nine million, one hundred thirty-nine thousand, four hundred sixty-four".