421416164 has 24 divisors (see below), whose sum is σ = 796340160. Its totient is φ = 193977504.

The previous prime is 421416161. The next prime is 421416167. The reversal of 421416164 is 461614124.

It is an interprime number because it is at equal distance from previous prime (421416161) and next prime (421416167).

It is not an unprimeable number, because it can be changed into a prime (421416161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9017 + ... + 30399.

It is an arithmetic number, because the mean of its divisors is an integer number (33180840).

Almost surely, 2^421416164 is an apocalyptic number.

It is an amenable number.

421416164 is a deficient number, since it is larger than the sum of its proper divisors (374923996).

421416164 is a wasteful number, since it uses less digits than its factorization.

421416164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21779 (or 21777 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 421416164 is about 20528.4233198753. The cubic root of 421416164 is about 749.7279985507.

The spelling of 421416164 in words is "four hundred twenty-one million, four hundred sixteen thousand, one hundred sixty-four".