322442140 has 12 divisors (see below), whose sum is σ = 677128536. Its totient is φ = 128976848.

The previous prime is 322442101. The next prime is 322442149. The reversal of 322442140 is 41244223.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322442149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8061034 + ... + 8061073.

It is an arithmetic number, because the mean of its divisors is an integer number (56427378).

Almost surely, 2^322442140 is an apocalyptic number.

It is an amenable number.

322442140 is an abundant number, since it is smaller than the sum of its proper divisors (354686396).

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

322442140 is a wasteful number, since it uses less digits than its factorization.

322442140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16122116 (or 16122114 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 322442140 is about 17956.6739681936. The cubic root of 322442140 is about 685.7259712377.

Adding to 322442140 its reverse (41244223), we get a palindrome (363686363).

The spelling of 322442140 in words is "three hundred twenty-two million, four hundred forty-two thousand, one hundred forty".