264536 has 16 divisors (see below), whose sum is σ = 508200. Its totient is φ = 129024.

The previous prime is 264529. The next prime is 264553. The reversal of 264536 is 635462.

264536 = 121² + 122² + ... + 136².

It is a d-powerful number, because it can be written as 2⁷ + 6² + 5 + 4⁹ + 3⁷ + 6² .

It is a congruent number.

It is an unprimeable number.

264536 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41 + ... + 728.

2²⁶⁴⁵³⁶ is an apocalyptic number.

It is an amenable number.

264536 is a deficient number, since it is larger than the sum of its proper divisors (243664).

264536 is a wasteful number, since it uses less digits than its factorization.

264536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 814 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 264536 is about 514.3306329590. The cubic root of 264536 is about 64.1940723622.

Adding to 264536 its reverse (635462), we get a palindrome (899998).

The spelling of 264536 in words is "two hundred sixty-four thousand, five hundred thirty-six".