421633982 has 32 divisors (see below), whose sum is σ = 794223360. Its totient is φ = 163082880.

The previous prime is 421633969. The next prime is 421633991. The reversal of 421633982 is 289336124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11558 + ... + 31254.

It is an arithmetic number, because the mean of its divisors is an integer number (24819480).

Almost surely, 2^421633982 is an apocalyptic number.

421633982 is a deficient number, since it is larger than the sum of its proper divisors (372589378).

421633982 is a wasteful number, since it uses less digits than its factorization.

421633982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19856.

The product of its digits is 62208, while the sum is 38.

The square root of 421633982 is about 20533.7279128754. The cubic root of 421633982 is about 749.8571473111.

The spelling of 421633982 in words is "four hundred twenty-one million, six hundred thirty-three thousand, nine hundred eighty-two".