421320332 has 12 divisors (see below), whose sum is σ = 757238160. Its totient is φ = 204966576.

The previous prime is 421320329. The next prime is 421320377. The reversal of 421320332 is 233023124.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423232 + ... + 1423527.

It is an arithmetic number, because the mean of its divisors is an integer number (63103180).

Almost surely, 2^421320332 is an apocalyptic number.

It is an amenable number.

421320332 is a deficient number, since it is larger than the sum of its proper divisors (335917828).

421320332 is a wasteful number, since it uses less digits than its factorization.

421320332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846800 (or 2846798 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 421320332 is about 20526.0890575872. The cubic root of 421320332 is about 749.6711636952.

Adding to 421320332 its reverse (233023124), we get a palindrome (654343456).

The spelling of 421320332 in words is "four hundred twenty-one million, three hundred twenty thousand, three hundred thirty-two".