20044506 has 16 divisors (see below), whose sum is σ = 42199200. Its totient is φ = 6329808.

The previous prime is 20044501. The next prime is 20044511. The reversal of 20044506 is 60544002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20044501) and next prime (20044511).

It is not an unprimeable number, because it can be changed into a prime (20044501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87801 + ... + 88028.

It is an arithmetic number, because the mean of its divisors is an integer number (2637450).

Almost surely, 2^20044506 is an apocalyptic number.

20044506 is an abundant number, since it is smaller than the sum of its proper divisors (22154694).

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

20044506 is a wasteful number, since it uses less digits than its factorization.

20044506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175853.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20044506 is about 4477.1091119159. The cubic root of 20044506 is about 271.6429589425.

Adding to 20044506 its reverse (60544002), we get a palindrome (80588508).

The spelling of 20044506 in words is "twenty million, forty-four thousand, five hundred six".