230721180 has 48 divisors (see below), whose sum is σ = 680023680. Its totient is φ = 58287168.

The previous prime is 230721163. The next prime is 230721181. The reversal of 230721180 is 81127032.

It is a self number, because there is not a number n which added to its sum of digits gives 230721180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230721181) 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, 100054 + ... + 102333.

It is an arithmetic number, because the mean of its divisors is an integer number (14167160).

Almost surely, 2^230721180 is an apocalyptic number.

230721180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230721180 is an abundant number, since it is smaller than the sum of its proper divisors (449302500).

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

230721180 is a wasteful number, since it uses less digits than its factorization.

230721180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202418 (or 202416 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 230721180 is about 15189.5088794865. The cubic root of 230721180 is about 613.3322785374.

The spelling of 230721180 in words is "two hundred thirty million, seven hundred twenty-one thousand, one hundred eighty".