421216476 has 48 divisors (see below), whose sum is σ = 1009008000. Its totient is φ = 136688832.

The previous prime is 421216459. The next prime is 421216487. The reversal of 421216476 is 674612124.

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 15 ways as a sum of consecutive naturals, for example, 178915 + ... + 181253.

It is an arithmetic number, because the mean of its divisors is an integer number (21021000).

Almost surely, 2^421216476 is an apocalyptic number.

It is an amenable number.

421216476 is an abundant number, since it is smaller than the sum of its proper divisors (587791524).

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

421216476 is a wasteful number, since it uses less digits than its factorization.

421216476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738 (or 2736 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 421216476 is about 20523.5590480794. The cubic root of 421216476 is about 749.6095603333.

The spelling of 421216476 in words is "four hundred twenty-one million, two hundred sixteen thousand, four hundred seventy-six".