20044135 has 16 divisors (see below), whose sum is σ = 25125120. Its totient is φ = 15333120.

The previous prime is 20044127. The next prime is 20044147. The reversal of 20044135 is 53144002.

It is not a de Polignac number, because 20044135 - 2³ = 20044127 is a prime.

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, 13069 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (1570320).

Almost surely, 2^20044135 is an apocalyptic number.

20044135 is a deficient number, since it is larger than the sum of its proper divisors (5080985).

20044135 is a wasteful number, since it uses less digits than its factorization.

20044135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20044135 is about 4477.0676787379. The cubic root of 20044135 is about 271.6412830027.

Adding to 20044135 its reverse (53144002), we get a palindrome (73188137).

The spelling of 20044135 in words is "twenty million, forty-four thousand, one hundred thirty-five".