20012244 has 48 divisors (see below), whose sum is σ = 56179200. Its totient is φ = 5416416.

The previous prime is 20012219. The next prime is 20012261. The reversal of 20012244 is 44221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4674 + ... + 7865.

It is an arithmetic number, because the mean of its divisors is an integer number (1170400).

Almost surely, 2^20012244 is an apocalyptic number.

It is an amenable number.

20012244 is an abundant number, since it is smaller than the sum of its proper divisors (36166956).

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

20012244 is a wasteful number, since it uses less digits than its factorization.

20012244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12572 (or 12570 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 20012244 is about 4473.5046663662. The cubic root of 20012244 is about 271.4971425751.

Adding to 20012244 its reverse (44221002), we get a palindrome (64233246).

The spelling of 20012244 in words is "twenty million, twelve thousand, two hundred forty-four".