264388 has 12 divisors (see below), whose sum is σ = 466732. Its totient is φ = 131040.

The previous prime is 264371. The next prime is 264391. The reversal of 264388 is 883462.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26244 + 238144 = 162^2 + 488^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418 + ... + 838.

2²⁶⁴³⁸⁸ is an apocalyptic number.

It is an amenable number.

264388 is a deficient number, since it is larger than the sum of its proper divisors (202344).

264388 is a wasteful number, since it uses less digits than its factorization.

264388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582 (or 580 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 264388 is about 514.1867365073. The cubic root of 264388 is about 64.1820985728.

The spelling of 264388 in words is "two hundred sixty-four thousand, three hundred eighty-eight".