322277772 has 144 divisors (see below), whose sum is σ = 865101440. Its totient is φ = 93063168.

The previous prime is 322277749. The next prime is 322277773. The reversal of 322277772 is 277772223.

It is a self number, because there is not a number n which added to its sum of digits gives 322277772.

It is not an unprimeable number, because it can be changed into a prime (322277773) 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 47 ways as a sum of consecutive naturals, for example, 4414728 + ... + 4414800.

Almost surely, 2^322277772 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 322277772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432550720).

322277772 is an abundant number, since it is smaller than the sum of its proper divisors (542823668).

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

322277772 is a wasteful number, since it uses less digits than its factorization.

322277772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 181 counting only the distinct ones).

The product of its digits is 115248, while the sum is 39.

The square root of 322277772 is about 17952.0965906492. The cubic root of 322277772 is about 685.6094329509.

The spelling of 322277772 in words is "three hundred twenty-two million, two hundred seventy-seven thousand, seven hundred seventy-two".