322142140 has 48 divisors (see below), whose sum is σ = 709470720. Its totient is φ = 122633280.

The previous prime is 322142113. The next prime is 322142143. The reversal of 322142140 is 41241223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322142143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95401 + ... + 98719.

It is an arithmetic number, because the mean of its divisors is an integer number (14780640).

Almost surely, 2^322142140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322142140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354735360).

322142140 is an abundant number, since it is smaller than the sum of its proper divisors (387328580).

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

322142140 is a wasteful number, since it uses less digits than its factorization.

322142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562 (or 3560 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 322142140 is about 17948.3185842017. The cubic root of 322142140 is about 685.5132388859.

Adding to 322142140 its reverse (41241223), we get a palindrome (363383363).

The spelling of 322142140 in words is "three hundred twenty-two million, one hundred forty-two thousand, one hundred forty".