421715472 has 40 divisors (see below), whose sum is σ = 1090242720. Its totient is φ = 140467200.

The previous prime is 421715467. The next prime is 421715473. The reversal of 421715472 is 274517124.

It is not an unprimeable number, because it can be changed into a prime (421715473) 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, 88347 + ... + 92997.

It is an arithmetic number, because the mean of its divisors is an integer number (27256068).

Almost surely, 2^421715472 is an apocalyptic number.

It is an amenable number.

421715472 is an abundant number, since it is smaller than the sum of its proper divisors (668527248).

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

421715472 is a wasteful number, since it uses less digits than its factorization.

421715472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6551 (or 6545 counting only the distinct ones).

The product of its digits is 15680, while the sum is 33.

The square root of 421715472 is about 20535.7121132918. The cubic root of 421715472 is about 749.9054529705.

The spelling of 421715472 in words is "four hundred twenty-one million, seven hundred fifteen thousand, four hundred seventy-two".