264921420 has 24 divisors (see below), whose sum is σ = 741780144. Its totient is φ = 70645696.

The previous prime is 264921413. The next prime is 264921439. The reversal of 264921420 is 24129462.

264921420 = 2554² + 2555² + ... + 2593².

264921420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 2207619 + ... + 2207738.

It is an arithmetic number, because the mean of its divisors is an integer number (30907506).

Almost surely, 2^264921420 is an apocalyptic number.

264921420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264921420 is an abundant number, since it is smaller than the sum of its proper divisors (476858724).

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

264921420 is a wasteful number, since it uses less digits than its factorization.

264921420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415369 (or 4415367 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 264921420 is about 16276.4068516365. The cubic root of 264921420 is about 642.2523343058.

The spelling of 264921420 in words is "two hundred sixty-four million, nine hundred twenty-one thousand, four hundred twenty".