421675416 has 32 divisors (see below), whose sum is σ = 1171321200. Its totient is φ = 140558400.

The previous prime is 421675391. The next prime is 421675439. The reversal of 421675416 is 614576124.

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

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, 975885 + ... + 976316.

Almost surely, 2^421675416 is an apocalyptic number.

It is an amenable number.

421675416 is an abundant number, since it is smaller than the sum of its proper divisors (749645784).

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

421675416 is a wasteful number, since it uses less digits than its factorization.

421675416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952216 (or 1952206 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 421675416 is about 20534.7368135070. The cubic root of 421675416 is about 749.8817093441.

The spelling of 421675416 in words is "four hundred twenty-one million, six hundred seventy-five thousand, four hundred sixteen".