421998312 has 64 divisors (see below), whose sum is σ = 1068480000. Its totient is φ = 138882240.

The previous prime is 421998307. The next prime is 421998337. The reversal of 421998312 is 213899124.

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, 845439 + ... + 845937.

It is an arithmetic number, because the mean of its divisors is an integer number (16695000).

Almost surely, 2^421998312 is an apocalyptic number.

It is an amenable number.

421998312 is an abundant number, since it is smaller than the sum of its proper divisors (646481688).

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

421998312 is a wasteful number, since it uses less digits than its factorization.

421998312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 882 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 421998312 is about 20542.5974988559. The cubic root of 421998312 is about 750.0730666592.

The spelling of 421998312 in words is "four hundred twenty-one million, nine hundred ninety-eight thousand, three hundred twelve".