20408044 has 12 divisors (see below), whose sum is σ = 36866368. Its totient is φ = 9874800.

The previous prime is 20408039. The next prime is 20408051. The reversal of 20408044 is 44080402.

It is a super-3 number, since 3×20408044³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82167 + ... + 82414.

Almost surely, 2^20408044 is an apocalyptic number.

It is an amenable number.

20408044 is a deficient number, since it is larger than the sum of its proper divisors (16458324).

20408044 is a wasteful number, since it uses less digits than its factorization.

20408044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164616 (or 164614 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 20408044 is about 4517.5263142565. The cubic root of 20408044 is about 273.2753509107.

Adding to 20408044 its reverse (44080402), we get a palindrome (64488446).

The spelling of 20408044 in words is "twenty million, four hundred eight thousand, forty-four".