230707979920 has 80 divisors (see below), whose sum is σ = 589995630720. Its totient is φ = 83893772160.

The previous prime is 230707979899. The next prime is 230707979923. The reversal of 230707979920 is 29979707032.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (230707979923) 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, 976860 + ... + 1189819.

It is an arithmetic number, because the mean of its divisors is an integer number (7374945384).

Almost surely, 2^230707979920 is an apocalyptic number.

230707979920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230707979920 is an abundant number, since it is smaller than the sum of its proper divisors (359287650800).

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

230707979920 is a wasteful number, since it uses less digits than its factorization.

230707979920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166725 (or 2166697 counting only the distinct ones).

The product of its (nonzero) digits is 3000564, while the sum is 55.

The spelling of 230707979920 in words is "two hundred thirty billion, seven hundred seven million, nine hundred seventy-nine thousand, nine hundred twenty".