230021544 has 32 divisors (see below), whose sum is σ = 575572320. Its totient is φ = 76604736.

The previous prime is 230021527. The next prime is 230021587. The reversal of 230021544 is 445120032.

It is a self number, because there is not a number n which added to its sum of digits gives 230021544.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27702 + ... + 35034.

It is an arithmetic number, because the mean of its divisors is an integer number (17986635).

Almost surely, 2^230021544 is an apocalyptic number.

230021544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

230021544 is an abundant number, since it is smaller than the sum of its proper divisors (345550776).

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

230021544 is a wasteful number, since it uses less digits than its factorization.

230021544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8649 (or 8645 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 230021544 is about 15166.4611561168. The cubic root of 230021544 is about 612.7116971410.

Adding to 230021544 its reverse (445120032), we get a palindrome (675141576).

The spelling of 230021544 in words is "two hundred thirty million, twenty-one thousand, five hundred forty-four".