1322272760 has 128 divisors (see below), whose sum is σ = 3254722560. Its totient is φ = 481958400.

The previous prime is 1322272759. The next prime is 1322272781. The reversal of 1322272760 is 672722231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2024594 + ... + 2025246.

It is an arithmetic number, because the mean of its divisors is an integer number (25427520).

Almost surely, 2^1322272760 is an apocalyptic number.

1322272760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322272760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1627361280).

1322272760 is an abundant number, since it is smaller than the sum of its proper divisors (1932449800).

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

1322272760 is a wasteful number, since it uses less digits than its factorization.

1322272760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 1322272760 is about 36363.0686273862. The cubic root of 1322272760 is about 1097.5905277277.

Adding to 1322272760 its reverse (672722231), we get a palindrome (1994994991).

The spelling of 1322272760 in words is "one billion, three hundred twenty-two million, two hundred seventy-two thousand, seven hundred sixty".