421116216 has 32 divisors (see below), whose sum is σ = 1055389200. Its totient is φ = 140025600.

The previous prime is 421116173. The next prime is 421116251. The reversal of 421116216 is 612611124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a congruent number.

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, 11635 + ... + 31266.

Almost surely, 2^421116216 is an apocalyptic number.

It is an amenable number.

421116216 is an abundant number, since it is smaller than the sum of its proper divisors (634272984).

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

421116216 is a wasteful number, since it uses less digits than its factorization.

421116216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43319 (or 43315 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 421116216 is about 20521.1163439029. The cubic root of 421116216 is about 749.5500803726.

The spelling of 421116216 in words is "four hundred twenty-one million, one hundred sixteen thousand, two hundred sixteen".