20264244 has 144 divisors (see below), whose sum is σ = 64886976. Its totient is φ = 4838400.

The previous prime is 20264227. The next prime is 20264249. The reversal of 20264244 is 44246202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20264249) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83964 + ... + 84204.

It is an arithmetic number, because the mean of its divisors is an integer number (450604).

Almost surely, 2^20264244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20264244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32443488).

20264244 is an abundant number, since it is smaller than the sum of its proper divisors (44622732).

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

20264244 is a wasteful number, since it uses less digits than its factorization.

20264244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 20264244 is about 4501.5823884496. The cubic root of 20264244 is about 272.6319827503.

It can be divided in two parts, 202 and 64244, that added together give a palindrome (64446).

The spelling of 20264244 in words is "twenty million, two hundred sixty-four thousand, two hundred forty-four".