264820280 has 16 divisors (see below), whose sum is σ = 595845720. Its totient is φ = 105928096.

The previous prime is 264820279. The next prime is 264820307. The reversal of 264820280 is 82028462.

It is a happy number.

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, 3310214 + ... + 3310293.

Almost surely, 2^264820280 is an apocalyptic number.

264820280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264820280 is an abundant number, since it is smaller than the sum of its proper divisors (331025440).

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

264820280 is a wasteful number, since it uses less digits than its factorization.

264820280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620518 (or 6620514 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 264820280 is about 16273.2996039525. The cubic root of 264820280 is about 642.1705922441.

The spelling of 264820280 in words is "two hundred sixty-four million, eight hundred twenty thousand, two hundred eighty".