231230304 has 72 divisors (see below), whose sum is σ = 692186040. Its totient is φ = 73018368.

The previous prime is 231230303. The next prime is 231230341. The reversal of 231230304 is 403032132.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231230303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15657 + ... + 26600.

It is an arithmetic number, because the mean of its divisors is an integer number (9613695).

Almost surely, 2^231230304 is an apocalyptic number.

231230304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231230304 is an abundant number, since it is smaller than the sum of its proper divisors (460955736).

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

231230304 is a wasteful number, since it uses less digits than its factorization.

231230304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42292 (or 42281 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 231230304 is about 15206.2587114648. The cubic root of 231230304 is about 613.7830864177.

Adding to 231230304 its reverse (403032132), we get a palindrome (634262436).

The spelling of 231230304 in words is "two hundred thirty-one million, two hundred thirty thousand, three hundred four".