322772140 has 24 divisors (see below), whose sum is σ = 678842640. Its totient is φ = 128914368.

The previous prime is 322772123. The next prime is 322772141. The reversal of 322772140 is 41277223.

It is a junction number, because it is equal to n+sod(n) for n = 322772099 and 322772108.

It is not an unprimeable number, because it can be changed into a prime (322772141) 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, 1846 + ... + 25474.

It is an arithmetic number, because the mean of its divisors is an integer number (28285110).

Almost surely, 2^322772140 is an apocalyptic number.

It is an amenable number.

322772140 is an abundant number, since it is smaller than the sum of its proper divisors (356070500).

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

322772140 is a wasteful number, since it uses less digits than its factorization.

322772140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24321 (or 24319 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 322772140 is about 17965.8604024411. The cubic root of 322772140 is about 685.9598244767.

The spelling of 322772140 in words is "three hundred twenty-two million, seven hundred seventy-two thousand, one hundred forty".