20064404 has 12 divisors (see below), whose sum is σ = 36323700. Its totient is φ = 9686208.

The previous prime is 20064391. The next prime is 20064413. The reversal of 20064404 is 40446002.

It can be written as a sum of positive squares in 2 ways, for example, as 4080400 + 15984004 = 2020^2 + 3998^2 .

It is a congruent number.

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, 86369 + ... + 86600.

It is an arithmetic number, because the mean of its divisors is an integer number (3026975).

Almost surely, 2^20064404 is an apocalyptic number.

It is an amenable number.

20064404 is a deficient number, since it is larger than the sum of its proper divisors (16259296).

20064404 is a wasteful number, since it uses less digits than its factorization.

20064404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173002 (or 173000 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 20064404 is about 4479.3307535836. The cubic root of 20064404 is about 271.7328150529.

The spelling of 20064404 in words is "twenty million, sixty-four thousand, four hundred four".