239982451720 has 128 divisors (see below), whose sum is σ = 622066314240. Its totient is φ = 82466179840.

The previous prime is 239982451703. The next prime is 239982451729. The reversal of 239982451720 is 27154289932.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (239982451729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 697107 + ... + 982813.

It is an arithmetic number, because the mean of its divisors is an integer number (4859893080).

Almost surely, 2^239982451720 is an apocalyptic number.

239982451720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239982451720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311033157120).

239982451720 is an abundant number, since it is smaller than the sum of its proper divisors (382083862520).

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

239982451720 is a wasteful number, since it uses less digits than its factorization.

239982451720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285835 (or 285831 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 239982451720 in words is "two hundred thirty-nine billion, nine hundred eighty-two million, four hundred fifty-one thousand, seven hundred twenty".