20264064 has 64 divisors (see below), whose sum is σ = 54419040. Its totient is φ = 6680576.

The previous prime is 20264047. The next prime is 20264077. The reversal of 20264064 is 46046202.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 43159 + ... + 43625.

Almost surely, 2^20264064 is an apocalyptic number.

20264064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20264064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27209520).

20264064 is an abundant number, since it is smaller than the sum of its proper divisors (34154976).

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

20264064 is a wasteful number, since it uses less digits than its factorization.

20264064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20264064 is about 4501.5623954356. The cubic root of 20264064 is about 272.6311755172.

The spelling of 20264064 in words is "twenty million, two hundred sixty-four thousand, sixty-four".