239921968 has 80 divisors (see below), whose sum is σ = 574963200. Its totient is φ = 95351040.

The previous prime is 239921963. The next prime is 239921977. The reversal of 239921968 is 869129932.

239921968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (239921963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40713 + ... + 46231.

It is an arithmetic number, because the mean of its divisors is an integer number (7187040).

Almost surely, 2^239921968 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 239921968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287481600).

239921968 is an abundant number, since it is smaller than the sum of its proper divisors (335041232).

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

239921968 is a wasteful number, since it uses less digits than its factorization.

239921968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5570 (or 5564 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The square root of 239921968 is about 15489.4147081160. The cubic root of 239921968 is about 621.3791428993.

The spelling of 239921968 in words is "two hundred thirty-nine million, nine hundred twenty-one thousand, nine hundred sixty-eight".