409128204 has 24 divisors (see below), whose sum is σ = 985427968. Its totient is φ = 131976720.

The previous prime is 409128193. The next prime is 409128211. The reversal of 409128204 is 402821904.

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, 549532 + ... + 550275.

Almost surely, 2^409128204 is an apocalyptic number.

It is an amenable number.

409128204 is an abundant number, since it is smaller than the sum of its proper divisors (576299764).

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

409128204 is a wasteful number, since it uses less digits than its factorization.

409128204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099845 (or 1099843 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 409128204 is about 20226.9178077136. The cubic root of 409128204 is about 742.3689628069.

The spelling of 409128204 in words is "four hundred nine million, one hundred twenty-eight thousand, two hundred four".