231430464 has 84 divisors (see below), whose sum is σ = 672815520. Its totient is φ = 76043520.

The previous prime is 231430447. The next prime is 231430471. The reversal of 231430464 is 464034132.

231430464 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38067 + ... + 43725.

Almost surely, 2^231430464 is an apocalyptic number.

231430464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231430464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336407760).

231430464 is an abundant number, since it is smaller than the sum of its proper divisors (441385056).

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

231430464 is a wasteful number, since it uses less digits than its factorization.

231430464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748 (or 5735 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 231430464 is about 15212.8387883393. The cubic root of 231430464 is about 613.9601384570.

Adding to 231430464 its reverse (464034132), we get a palindrome (695464596).

The spelling of 231430464 in words is "two hundred thirty-one million, four hundred thirty thousand, four hundred sixty-four".