264805992 has 96 divisors (see below), whose sum is σ = 816454080. Its totient is φ = 76750080.

The previous prime is 264805979. The next prime is 264806039. The reversal of 264805992 is 299508462.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10948 + ... + 25484.

It is an arithmetic number, because the mean of its divisors is an integer number (8504730).

Almost surely, 2^264805992 is an apocalyptic number.

264805992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264805992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408227040).

264805992 is an abundant number, since it is smaller than the sum of its proper divisors (551648088).

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

264805992 is a wasteful number, since it uses less digits than its factorization.

264805992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14583 (or 14576 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 264805992 is about 16272.8605967113. The cubic root of 264805992 is about 642.1590429040.

The spelling of 264805992 in words is "two hundred sixty-four million, eight hundred five thousand, nine hundred ninety-two".