239748864 has 72 divisors (see below), whose sum is σ = 643222272. Its totient is φ = 79272960.

The previous prime is 239748857. The next prime is 239748871. The reversal of 239748864 is 468847932.

It is an interprime number because it is at equal distance from previous prime (239748857) and next prime (239748871).

It is a congruent number.

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, 99417 + ... + 101799.

Almost surely, 2^239748864 is an apocalyptic number.

239748864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239748864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321611136).

239748864 is an abundant number, since it is smaller than the sum of its proper divisors (403473408).

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

239748864 is a wasteful number, since it uses less digits than its factorization.

239748864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2519 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 239748864 is about 15483.8258838053. The cubic root of 239748864 is about 621.2296650011.

The spelling of 239748864 in words is "two hundred thirty-nine million, seven hundred forty-eight thousand, eight hundred sixty-four".