20404466404 has 24 divisors (see below), whose sum is σ = 40953149888. Its totient is φ = 8713867680.

The previous prime is 20404466347. The next prime is 20404466431. The reversal of 20404466404 is 40466440402.

It is a self number, because there is not a number n which added to its sum of digits gives 20404466404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1279587 + ... + 1295434.

Almost surely, 2^20404466404 is an apocalyptic number.

It is an amenable number.

20404466404 is an abundant number, since it is smaller than the sum of its proper divisors (20548683484).

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

20404466404 is a wasteful number, since it uses less digits than its factorization.

20404466404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575315 (or 2575313 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

The spelling of 20404466404 in words is "twenty billion, four hundred four million, four hundred sixty-six thousand, four hundred four".