421939882 has 48 divisors (see below), whose sum is σ = 796914720. Its totient is φ = 166072032.

The previous prime is 421939871. The next prime is 421939891. The reversal of 421939882 is 288939124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288469 + ... + 289927.

It is an arithmetic number, because the mean of its divisors is an integer number (16602390).

Almost surely, 2^421939882 is an apocalyptic number.

421939882 is a deficient number, since it is larger than the sum of its proper divisors (374974838).

421939882 is a wasteful number, since it uses less digits than its factorization.

421939882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715 (or 1708 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 421939882 is about 20541.1752828313. The cubic root of 421939882 is about 750.0384466217.

The spelling of 421939882 in words is "four hundred twenty-one million, nine hundred thirty-nine thousand, eight hundred eighty-two".