264669220 has 24 divisors (see below), whose sum is σ = 567633024. Its totient is φ = 103614816.

The previous prime is 264669193. The next prime is 264669233. The reversal of 264669220 is 22966462.

It is a self number, because there is not a number n which added to its sum of digits gives 264669220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139842 + ... + 141721.

It is an arithmetic number, because the mean of its divisors is an integer number (23651376).

Almost surely, 2^264669220 is an apocalyptic number.

264669220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264669220 is an abundant number, since it is smaller than the sum of its proper divisors (302963804).

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

264669220 is a wasteful number, since it uses less digits than its factorization.

264669220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281619 (or 281617 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 264669220 is about 16268.6575967410. The cubic root of 264669220 is about 642.0484657206.

The spelling of 264669220 in words is "two hundred sixty-four million, six hundred sixty-nine thousand, two hundred twenty".