239213928 has 32 divisors (see below), whose sum is σ = 598579200. Its totient is φ = 79665408.

The previous prime is 239213927. The next prime is 239213929. The reversal of 239213928 is 829312932.

It is an interprime number because it is at equal distance from previous prime (239213927) and next prime (239213929).

It is not an unprimeable number, because it can be changed into a prime (239213927) 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, 26800 + ... + 34592.

It is an arithmetic number, because the mean of its divisors is an integer number (18705600).

Almost surely, 2^239213928 is an apocalyptic number.

It is an amenable number.

239213928 is an abundant number, since it is smaller than the sum of its proper divisors (359365272).

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

239213928 is a wasteful number, since it uses less digits than its factorization.

239213928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081 (or 9077 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 239213928 is about 15466.5422121430. The cubic root of 239213928 is about 620.7672845289.

The spelling of 239213928 in words is "two hundred thirty-nine million, two hundred thirteen thousand, nine hundred twenty-eight".