239191968 has 72 divisors (see below), whose sum is σ = 640670688. Its totient is φ = 78138112.

The previous prime is 239191963. The next prime is 239192011. The reversal of 239191968 is 869191932.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (239191961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269221 + ... + 270107.

It is an arithmetic number, because the mean of its divisors is an integer number (8898204).

Almost surely, 2^239191968 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 239191968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320335344).

239191968 is an abundant number, since it is smaller than the sum of its proper divisors (401478720).

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

239191968 is an equidigital number, since it uses as much as digits as its factorization.

239191968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 945 counting only the distinct ones).

The product of its digits is 209952, while the sum is 48.

The square root of 239191968 is about 15465.8322763439. The cubic root of 239191968 is about 620.7482883291.

The spelling of 239191968 in words is "two hundred thirty-nine million, one hundred ninety-one thousand, nine hundred sixty-eight".