239668288 has 56 divisors (see below), whose sum is σ = 491261400. Its totient is φ = 115937280.

The previous prime is 239668243. The next prime is 239668307. The reversal of 239668288 is 882866932.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49449024 + 190219264 = 7032^2 + 13792^2 .

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, 390670 + ... + 391282.

It is an arithmetic number, because the mean of its divisors is an integer number (8772525).

Almost surely, 2^239668288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239668288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245630700).

239668288 is an abundant number, since it is smaller than the sum of its proper divisors (251593112).

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

239668288 is a wasteful number, since it uses less digits than its factorization.

239668288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 805 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The square root of 239668288 is about 15481.2237242409. The cubic root of 239668288 is about 621.1600618764.

The spelling of 239668288 in words is "two hundred thirty-nine million, six hundred sixty-eight thousand, two hundred eighty-eight".