421108604 has 12 divisors (see below), whose sum is σ = 842217264. Its totient is φ = 180475104.

The previous prime is 421108561. The next prime is 421108621. The reversal of 421108604 is 406801124.

421108604 is an admirable number.

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, 7519769 + ... + 7519824.

It is an arithmetic number, because the mean of its divisors is an integer number (70184772).

Almost surely, 2^421108604 is an apocalyptic number.

It is an amenable number.

421108604 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

421108604 is a wasteful number, since it uses less digits than its factorization.

421108604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15039604 (or 15039602 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 421108604 is about 20520.9308755719. The cubic root of 421108604 is about 749.5455641137.

Adding to 421108604 its reverse (406801124), we get a palindrome (827909728).

The spelling of 421108604 in words is "four hundred twenty-one million, one hundred eight thousand, six hundred four".