264968320 has 32 divisors (see below), whose sum is σ = 633441420. Its totient is φ = 105987072.

The previous prime is 264968293. The next prime is 264968371. The reversal of 264968320 is 23869462.

It can be written as a sum of positive squares in 2 ways, for example, as 248125504 + 16842816 = 15752^2 + 4104^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 206367 + ... + 207646.

Almost surely, 2^264968320 is an apocalyptic number.

264968320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264968320 is an abundant number, since it is smaller than the sum of its proper divisors (368473100).

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

264968320 is an equidigital number, since it uses as much as digits as its factorization.

264968320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414032 (or 414020 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 264968320 is about 16277.8475235518. The cubic root of 264968320 is about 642.2902321564.

The spelling of 264968320 in words is "two hundred sixty-four million, nine hundred sixty-eight thousand, three hundred twenty".