420173404 has 48 divisors (see below), whose sum is σ = 853106688. Its totient is φ = 177363648.

The previous prime is 420173389. The next prime is 420173447. The reversal of 420173404 is 404371024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614847 + ... + 615529.

It is an arithmetic number, because the mean of its divisors is an integer number (17773056).

Almost surely, 2^420173404 is an apocalyptic number.

It is an amenable number.

420173404 is an abundant number, since it is smaller than the sum of its proper divisors (432933284).

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

420173404 is a wasteful number, since it uses less digits than its factorization.

420173404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 420173404 is about 20498.1317197446. The cubic root of 420173404 is about 748.9902880673.

The spelling of 420173404 in words is "four hundred twenty million, one hundred seventy-three thousand, four hundred four".