321142422 has 64 divisors (see below), whose sum is σ = 692375040. Its totient is φ = 99052800.

The previous prime is 321142411. The next prime is 321142429. The reversal of 321142422 is 224241123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321142429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1193704 + ... + 1193972.

It is an arithmetic number, because the mean of its divisors is an integer number (10818360).

Almost surely, 2^321142422 is an apocalyptic number.

321142422 is an abundant number, since it is smaller than the sum of its proper divisors (371232618).

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

321142422 is a wasteful number, since it uses less digits than its factorization.

321142422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its digits is 768, while the sum is 21.

The square root of 321142422 is about 17920.4470368348. The cubic root of 321142422 is about 684.8033761766.

Adding to 321142422 its reverse (224241123), we get a palindrome (545383545).

The spelling of 321142422 in words is "three hundred twenty-one million, one hundred forty-two thousand, four hundred twenty-two".