231204464 has 80 divisors (see below), whose sum is σ = 504134400. Its totient is φ = 102187008.

The previous prime is 231204451. The next prime is 231204469. The reversal of 231204464 is 464402132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231204469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300272 + ... + 301040.

It is an arithmetic number, because the mean of its divisors is an integer number (6301680).

Almost surely, 2^231204464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231204464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252067200).

231204464 is an abundant number, since it is smaller than the sum of its proper divisors (272929936).

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

231204464 is a wasteful number, since it uses less digits than its factorization.

231204464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 231204464 is about 15205.4090375761. The cubic root of 231204464 is about 613.7602221340.

Adding to 231204464 its reverse (464402132), we get a palindrome (695606596).

The spelling of 231204464 in words is "two hundred thirty-one million, two hundred four thousand, four hundred sixty-four".