20302505404 has 12 divisors (see below), whose sum is σ = 37399352200. Its totient is φ = 9616976208.

The previous prime is 20302505393. The next prime is 20302505413. The reversal of 20302505404 is 40450520302.

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, 133569039 + ... + 133569190.

Almost surely, 2^20302505404 is an apocalyptic number.

It is an amenable number.

20302505404 is a deficient number, since it is larger than the sum of its proper divisors (17096846796).

20302505404 is a wasteful number, since it uses less digits than its factorization.

20302505404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267138252 (or 267138250 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The spelling of 20302505404 in words is "twenty billion, three hundred two million, five hundred five thousand, four hundred four".