421331576 has 16 divisors (see below), whose sum is σ = 791227440. Its totient is φ = 210337600.

The previous prime is 421331557. The next prime is 421331579. The reversal of 421331576 is 675133124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421331579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35525 + ... + 45876.

It is an arithmetic number, because the mean of its divisors is an integer number (49451715).

Almost surely, 2^421331576 is an apocalyptic number.

It is an amenable number.

421331576 is a deficient number, since it is larger than the sum of its proper divisors (369895864).

421331576 is a wasteful number, since it uses less digits than its factorization.

421331576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82054 (or 82050 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 421331576 is about 20526.3629510929. The cubic root of 421331576 is about 749.6778325937.

The spelling of 421331576 in words is "four hundred twenty-one million, three hundred thirty-one thousand, five hundred seventy-six".