421213132 has 12 divisors (see below), whose sum is σ = 739844896. Its totient is φ = 209828880.

The previous prime is 421213087. The next prime is 421213159. The reversal of 421213132 is 231312124.

It is a happy number.

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, 193203 + ... + 195370.

Almost surely, 2^421213132 is an apocalyptic number.

It is an amenable number.

421213132 is a deficient number, since it is larger than the sum of its proper divisors (318631764).

421213132 is a wasteful number, since it uses less digits than its factorization.

421213132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388848 (or 388846 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 421213132 is about 20523.4775805661. The cubic root of 421213132 is about 749.6075766336.

Adding to 421213132 its reverse (231312124), we get a palindrome (652525256).

The spelling of 421213132 in words is "four hundred twenty-one million, two hundred thirteen thousand, one hundred thirty-two".