20264264 has 8 divisors (see below), whose sum is σ = 37995510. Its totient is φ = 10132128.

The previous prime is 20264263. The next prime is 20264269. The reversal of 20264264 is 46246202.

It can be written as a sum of positive squares in only one way, i.e., 19731364 + 532900 = 4442^2 + 730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (20264263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1266509 + ... + 1266524.

Almost surely, 2^20264264 is an apocalyptic number.

It is an amenable number.

20264264 is a deficient number, since it is larger than the sum of its proper divisors (17731246).

20264264 is a wasteful number, since it uses less digits than its factorization.

20264264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533039 (or 2533035 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 20264264 is about 4501.5846098902. The cubic root of 20264264 is about 272.6320724426.

The spelling of 20264264 in words is "twenty million, two hundred sixty-four thousand, two hundred sixty-four".