264843680 has 48 divisors (see below), whose sum is σ = 662505480. Its totient is φ = 99704832.

The previous prime is 264843653. The next prime is 264843701. The reversal of 264843680 is 86348462.

It can be written as a sum of positive squares in 4 ways, for example, as 263867536 + 976144 = 16244^2 + 988^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45965 + ... + 51404.

Almost surely, 2^264843680 is an apocalyptic number.

264843680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264843680 is an abundant number, since it is smaller than the sum of its proper divisors (397661800).

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

264843680 is a wasteful number, since it uses less digits than its factorization.

264843680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97401 (or 97393 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 264843680 is about 16274.0185571972. The cubic root of 264843680 is about 642.1895061396.

The spelling of 264843680 in words is "two hundred sixty-four million, eight hundred forty-three thousand, six hundred eighty".