421626216 has 32 divisors (see below), whose sum is σ = 1149890400. Its totient is φ = 127765440.

The previous prime is 421626209. The next prime is 421626229. The reversal of 421626216 is 612626124.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798271 + ... + 798798.

It is an arithmetic number, because the mean of its divisors is an integer number (35934075).

Almost surely, 2^421626216 is an apocalyptic number.

It is an amenable number.

421626216 is an abundant number, since it is smaller than the sum of its proper divisors (728264184).

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

421626216 is a wasteful number, since it uses less digits than its factorization.

421626216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597089 (or 1597085 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 421626216 is about 20533.5388084957. The cubic root of 421626216 is about 749.8525434551.

The spelling of 421626216 in words is "four hundred twenty-one million, six hundred twenty-six thousand, two hundred sixteen".