239322728 has 32 divisors (see below), whose sum is σ = 483356160. Its totient is φ = 110763840.

The previous prime is 239322701. The next prime is 239322749. The reversal of 239322728 is 827223932.

It is a junction number, because it is equal to n+sod(n) for n = 239322691 and 239322700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15275 + ... + 26682.

It is an arithmetic number, because the mean of its divisors is an integer number (15104880).

Almost surely, 2^239322728 is an apocalyptic number.

It is an amenable number.

239322728 is an abundant number, since it is smaller than the sum of its proper divisors (244033432).

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

239322728 is a wasteful number, since it uses less digits than its factorization.

239322728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42017 (or 42013 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 239322728 is about 15470.0590819816. The cubic root of 239322728 is about 620.8613833470.

The spelling of 239322728 in words is "two hundred thirty-nine million, three hundred twenty-two thousand, seven hundred twenty-eight".