230439920 has 20 divisors (see below), whose sum is σ = 535773000. Its totient is φ = 92175936.

The previous prime is 230439907. The next prime is 230439931. The reversal of 230439920 is 29934032.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440170 + ... + 1440329.

It is an arithmetic number, because the mean of its divisors is an integer number (26788650).

Almost surely, 2^230439920 is an apocalyptic number.

230439920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230439920 is an abundant number, since it is smaller than the sum of its proper divisors (305333080).

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

230439920 is a wasteful number, since it uses less digits than its factorization.

230439920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880512 (or 2880506 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 230439920 is about 15180.2476923139. The cubic root of 230439920 is about 613.0829502041.

It can be divided in two parts, 2304 and 39920, that added together give a palindrome (42224).

The spelling of 230439920 in words is "two hundred thirty million, four hundred thirty-nine thousand, nine hundred twenty".