264836240 has 20 divisors (see below), whose sum is σ = 615744444. Its totient is φ = 105934464.

The previous prime is 264836239. The next prime is 264836279. The reversal of 264836240 is 42638462.

It can be written as a sum of positive squares in 2 ways, for example, as 203119504 + 61716736 = 14252^2 + 7856^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 264836240.

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, 1655147 + ... + 1655306.

Almost surely, 2^264836240 is an apocalyptic number.

264836240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264836240 is an abundant number, since it is smaller than the sum of its proper divisors (350908204).

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

264836240 is a wasteful number, since it uses less digits than its factorization.

264836240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310466 (or 3310460 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 264836240 is about 16273.7899703788. The cubic root of 264836240 is about 642.1834926116.

It can be divided in two parts, 26483 and 6240, that added together give a palindrome (32723).

The spelling of 264836240 in words is "two hundred sixty-four million, eight hundred thirty-six thousand, two hundred forty".