231663264 has 96 divisors (see below), whose sum is σ = 706890240. Its totient is φ = 65056512.

The previous prime is 231663203. The next prime is 231663277. The reversal of 231663264 is 462366132.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36727 + ... + 42569.

It is an arithmetic number, because the mean of its divisors is an integer number (7363440).

Almost surely, 2^231663264 is an apocalyptic number.

231663264 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 231663264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353445120).

231663264 is an abundant number, since it is smaller than the sum of its proper divisors (475226976).

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

231663264 is a wasteful number, since it uses less digits than its factorization.

231663264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922 (or 5914 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 231663264 is about 15220.4882970291. The cubic root of 231663264 is about 614.1659339247.

The spelling of 231663264 in words is "two hundred thirty-one million, six hundred sixty-three thousand, two hundred sixty-four".