231473264 has 40 divisors (see below), whose sum is σ = 492425328. Its totient is φ = 104532480.

The previous prime is 231473251. The next prime is 231473269. The reversal of 231473264 is 462374132.

It is a self number, because there is not a number n which added to its sum of digits gives 231473264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231473269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23444 + ... + 31820.

Almost surely, 2^231473264 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 231473264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246212664).

231473264 is an abundant number, since it is smaller than the sum of its proper divisors (260952064).

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

231473264 is a wasteful number, since it uses less digits than its factorization.

231473264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8553 (or 8547 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 231473264 is about 15214.2454298595. The cubic root of 231473264 is about 613.9979840569.

The spelling of 231473264 in words is "two hundred thirty-one million, four hundred seventy-three thousand, two hundred sixty-four".