264619968 has 112 divisors (see below), whose sum is σ = 754538496. Its totient is φ = 81607680.

The previous prime is 264619961. The next prime is 264619987. The reversal of 264619968 is 869916462.

It is a self number, because there is not a number n which added to its sum of digits gives 264619968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264619961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135930 + ... + 137862.

Almost surely, 2^264619968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264619968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377269248).

264619968 is an abundant number, since it is smaller than the sum of its proper divisors (489918528).

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

264619968 is a wasteful number, since it uses less digits than its factorization.

264619968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 1992 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 264619968 is about 16267.1438181385. The cubic root of 264619968 is about 642.0086372223.

The spelling of 264619968 in words is "two hundred sixty-four million, six hundred nineteen thousand, nine hundred sixty-eight".