420890996 has 12 divisors (see below), whose sum is σ = 736787520. Its totient is φ = 210380280.

The previous prime is 420890971. The next prime is 420891041. The reversal of 420890996 is 699098024.

It is a self number, because there is not a number n which added to its sum of digits gives 420890996.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 35 + ... + 29013.

It is an arithmetic number, because the mean of its divisors is an integer number (61398960).

Almost surely, 2^420890996 is an apocalyptic number.

It is an amenable number.

420890996 is a deficient number, since it is larger than the sum of its proper divisors (315896524).

420890996 is a wasteful number, since it uses less digits than its factorization.

420890996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32614 (or 32612 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 420890996 is about 20515.6280917743. The cubic root of 420890996 is about 749.4164325684.

The spelling of 420890996 in words is "four hundred twenty million, eight hundred ninety thousand, nine hundred ninety-six".