421601132 has 12 divisors (see below), whose sum is σ = 769880496. Its totient is φ = 201635280.

The previous prime is 421601129. The next prime is 421601149. The reversal of 421601132 is 231106124.

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, 2291219 + ... + 2291402.

It is an arithmetic number, because the mean of its divisors is an integer number (64156708).

Almost surely, 2^421601132 is an apocalyptic number.

It is an amenable number.

421601132 is a deficient number, since it is larger than the sum of its proper divisors (348279364).

421601132 is a wasteful number, since it uses less digits than its factorization.

421601132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582648 (or 4582646 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 421601132 is about 20532.9279938347. The cubic root of 421601132 is about 749.8376727209.

Adding to 421601132 its reverse (231106124), we get a palindrome (652707256).

The spelling of 421601132 in words is "four hundred twenty-one million, six hundred one thousand, one hundred thirty-two".