421803382 has 96 divisors (see below), whose sum is σ = 900184320. Its totient is φ = 143544960.

The previous prime is 421803379. The next prime is 421803397. The reversal of 421803382 is 283308124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 494068 + ... + 494920.

It is an arithmetic number, because the mean of its divisors is an integer number (9376920).

Almost surely, 2^421803382 is an apocalyptic number.

421803382 is an abundant number, since it is smaller than the sum of its proper divisors (478380938).

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

421803382 is a wasteful number, since it uses less digits than its factorization.

421803382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 421803382 is about 20537.8524193743. The cubic root of 421803382 is about 749.9575573019.

The spelling of 421803382 in words is "four hundred twenty-one million, eight hundred three thousand, three hundred eighty-two".