421998348996 has 81 divisors (see below), whose sum is σ = 1240956330159. Its totient is φ = 120563161488.

The previous prime is 421998348983. The next prime is 421998349009. The reversal of 421998348996 is 699843899124.

The square root of 421998348996 is 649614.

It is a perfect power (a square), and thus also a powerful number.

421998348996 is a `hidden beast` number, since 4 + 2 + 199 + 8 + 348 + 9 + 96 = 666.

It is an interprime number because it is at equal distance from previous prime (421998348983) and next prime (421998349009).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 27276055 + ... + 27291521.

Almost surely, 2^421998348996 is an apocalyptic number.

421998348996 is the 649614-th square number.

It is an amenable number.

421998348996 is an abundant number, since it is smaller than the sum of its proper divisors (818957981163).

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

421998348996 is an equidigital number, since it uses as much as digits as its factorization.

421998348996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30958 (or 15479 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 72.

The spelling of 421998348996 in words is "four hundred twenty-one billion, nine hundred ninety-eight million, three hundred forty-eight thousand, nine hundred ninety-six".