1322796288 has 144 divisors (see below), whose sum is σ = 3965294592. Its totient is φ = 387840000.

The previous prime is 1322796269. The next prime is 1322796311. The reversal of 1322796288 is 8826972231.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259363 + ... + 264413.

It is an arithmetic number, because the mean of its divisors is an integer number (27536768).

Almost surely, 2^1322796288 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 1322796288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1982647296).

1322796288 is an abundant number, since it is smaller than the sum of its proper divisors (2642498304).

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

1322796288 is a wasteful number, since it uses less digits than its factorization.

1322796288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112 (or 5098 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 1322796288 is about 36370.2665373791. The cubic root of 1322796288 is about 1097.7353651045.

The spelling of 1322796288 in words is "one billion, three hundred twenty-two million, seven hundred ninety-six thousand, two hundred eighty-eight".