231430624 has 24 divisors (see below), whose sum is σ = 470328768. Its totient is φ = 111982080.

The previous prime is 231430561. The next prime is 231430637. The reversal of 231430624 is 426034132.

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, 115657 + ... + 117640.

It is an arithmetic number, because the mean of its divisors is an integer number (19597032).

Almost surely, 2^231430624 is an apocalyptic number.

It is an amenable number.

231430624 is an abundant number, since it is smaller than the sum of its proper divisors (238898144).

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

231430624 is a wasteful number, since it uses less digits than its factorization.

231430624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233338 (or 233330 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 231430624 is about 15212.8440470544. The cubic root of 231430624 is about 613.9602799446.

Adding to 231430624 its reverse (426034132), we get a palindrome (657464756).

The spelling of 231430624 in words is "two hundred thirty-one million, four hundred thirty thousand, six hundred twenty-four".