231630304 has 24 divisors (see below), whose sum is σ = 482848128. Its totient is φ = 109002240.

The previous prime is 231630257. The next prime is 231630313. The reversal of 231630304 is 403036132.

It is a super-2 number, since 2×231630304² = 107305195462264832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212352 + ... + 213439.

It is an arithmetic number, because the mean of its divisors is an integer number (20118672).

Almost surely, 2^231630304 is an apocalyptic number.

It is an amenable number.

231630304 is an abundant number, since it is smaller than the sum of its proper divisors (251217824).

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

231630304 is a wasteful number, since it uses less digits than its factorization.

231630304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425818 (or 425810 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 231630304 is about 15219.4055074434. The cubic root of 231630304 is about 614.1368056274.

Adding to 231630304 its reverse (403036132), we get a palindrome (634666436).

The spelling of 231630304 in words is "two hundred thirty-one million, six hundred thirty thousand, three hundred four".