20044044 has 24 divisors (see below), whose sum is σ = 51966320. Its totient is φ = 6681312.

The previous prime is 20044027. The next prime is 20044061. The reversal of 20044044 is 44044002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20044027) and next prime (20044061).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 92689 + ... + 92904.

Almost surely, 2^20044044 is an apocalyptic number.

It is an amenable number.

20044044 is an abundant number, since it is smaller than the sum of its proper divisors (31922276).

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

20044044 is a wasteful number, since it uses less digits than its factorization.

20044044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185606 (or 185598 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 20044044 is about 4477.0575158244. The cubic root of 20044044 is about 271.6408719199.

Adding to 20044044 its reverse (44044002), we get a palindrome (64088046).

It can be divided in two parts, 200 and 44044, that added together give a palindrome (44244).

The spelling of 20044044 in words is "twenty million, forty-four thousand, forty-four".