421232442 has 32 divisors (see below), whose sum is σ = 900547200. Its totient is φ = 131028480.

The previous prime is 421232437. The next prime is 421232459. The reversal of 421232442 is 244232124.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31567 + ... + 42882.

It is an arithmetic number, because the mean of its divisors is an integer number (28142100).

Almost surely, 2^421232442 is an apocalyptic number.

421232442 is an abundant number, since it is smaller than the sum of its proper divisors (479314758).

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

421232442 is a wasteful number, since it uses less digits than its factorization.

421232442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74518.

The product of its digits is 3072, while the sum is 24.

The square root of 421232442 is about 20523.9480120176. The cubic root of 421232442 is about 749.6190314056.

Adding to 421232442 its reverse (244232124), we get a palindrome (665464566).

The spelling of 421232442 in words is "four hundred twenty-one million, two hundred thirty-two thousand, four hundred forty-two".