264651020 has 24 divisors (see below), whose sum is σ = 556101168. Its totient is φ = 105796800.

The previous prime is 264650989. The next prime is 264651029. The reversal of 264651020 is 20156462.

It is not an unprimeable number, because it can be changed into a prime (264651029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44630 + ... + 50210.

It is an arithmetic number, because the mean of its divisors is an integer number (23170882).

Almost surely, 2^264651020 is an apocalyptic number.

264651020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264651020 is an abundant number, since it is smaller than the sum of its proper divisors (291450148).

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

264651020 is a wasteful number, since it uses less digits than its factorization.

264651020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7961 (or 7959 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 264651020 is about 16268.0982293567. The cubic root of 264651020 is about 642.0337485453.

The spelling of 264651020 in words is "two hundred sixty-four million, six hundred fifty-one thousand, twenty".