20044413 has 12 divisors (see below), whose sum is σ = 29350620. Its totient is φ = 13179456.

The previous prime is 20044397. The next prime is 20044447. The reversal of 20044413 is 31444002.

It can be written as a sum of positive squares in 2 ways, for example, as 3617604 + 16426809 = 1902^2 + 4053^2 .

It is not a de Polignac number, because 20044413 - 2⁴ = 20044397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14598 + ... + 15911.

It is an arithmetic number, because the mean of its divisors is an integer number (2445885).

Almost surely, 2^20044413 is an apocalyptic number.

It is an amenable number.

20044413 is a deficient number, since it is larger than the sum of its proper divisors (9306207).

20044413 is a wasteful number, since it uses less digits than its factorization.

20044413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30588 (or 30585 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20044413 is about 4477.0987257375. The cubic root of 20044413 is about 271.6425388302.

Adding to 20044413 its reverse (31444002), we get a palindrome (51488415).

The spelling of 20044413 in words is "twenty million, forty-four thousand, four hundred thirteen".