421897196 has 24 divisors (see below), whose sum is σ = 845196576. Its totient is φ = 180512640.

The previous prime is 421897183. The next prime is 421897213. The reversal of 421897196 is 691798124.

It is a self number, because there is not a number n which added to its sum of digits gives 421897196.

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, 5066 + ... + 29486.

It is an arithmetic number, because the mean of its divisors is an integer number (35216524).

Almost surely, 2^421897196 is an apocalyptic number.

It is an amenable number.

421897196 is an abundant number, since it is smaller than the sum of its proper divisors (423299380).

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

421897196 is a wasteful number, since it uses less digits than its factorization.

421897196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25049 (or 25047 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 421897196 is about 20540.1362215541. The cubic root of 421897196 is about 750.0131529545.

The spelling of 421897196 in words is "four hundred twenty-one million, eight hundred ninety-seven thousand, one hundred ninety-six".