421479216 has 30 divisors (see below), whose sum is σ = 1179556820. Its totient is φ = 140493024.

The previous prime is 421479211. The next prime is 421479241. The reversal of 421479216 is 612974124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (421479211) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1463326 + ... + 1463613.

Almost surely, 2^421479216 is an apocalyptic number.

It is an amenable number.

421479216 is an abundant number, since it is smaller than the sum of its proper divisors (758077604).

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

421479216 is a wasteful number, since it uses less digits than its factorization.

421479216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926953 (or 2926944 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 421479216 is about 20529.9589868075. The cubic root of 421479216 is about 749.7653879506.

The spelling of 421479216 in words is "four hundred twenty-one million, four hundred seventy-nine thousand, two hundred sixteen".