264506720 has 24 divisors (see below), whose sum is σ = 624897504. Its totient is φ = 105802624.

The previous prime is 264506707. The next prime is 264506761. The reversal of 264506720 is 27605462.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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, 826424 + ... + 826743.

It is an arithmetic number, because the mean of its divisors is an integer number (26037396).

Almost surely, 2^264506720 is an apocalyptic number.

264506720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264506720 is an abundant number, since it is smaller than the sum of its proper divisors (360390784).

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

264506720 is a wasteful number, since it uses less digits than its factorization.

264506720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653182 (or 1653174 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 264506720 is about 16263.6625641336. The cubic root of 264506720 is about 641.9170384804.

The spelling of 264506720 in words is "two hundred sixty-four million, five hundred six thousand, seven hundred twenty".