321442242 has 16 divisors (see below), whose sum is σ = 701328672. Its totient is φ = 97406720.

The previous prime is 321442229. The next prime is 321442249. The reversal of 321442242 is 242244123.

It is a super-2 number, since 2×321442242² = 206650229883973128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321442249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2435103 + ... + 2435234.

It is an arithmetic number, because the mean of its divisors is an integer number (43833042).

Almost surely, 2^321442242 is an apocalyptic number.

321442242 is an abundant number, since it is smaller than the sum of its proper divisors (379886430).

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

321442242 is a wasteful number, since it uses less digits than its factorization.

321442242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4870353.

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

The square root of 321442242 is about 17928.8103899840. The cubic root of 321442242 is about 685.0164217208.

Adding to 321442242 its reverse (242244123), we get a palindrome (563686365).

The spelling of 321442242 in words is "three hundred twenty-one million, four hundred forty-two thousand, two hundred forty-two".