1322115240 has 32 divisors (see below), whose sum is σ = 3966346080. Its totient is φ = 352564032.

The previous prime is 1322115199. The next prime is 1322115253. The reversal of 1322115240 is 425112231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5508694 + ... + 5508933.

It is an arithmetic number, because the mean of its divisors is an integer number (123948315).

Almost surely, 2^1322115240 is an apocalyptic number.

1322115240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322115240 is an abundant number, since it is smaller than the sum of its proper divisors (2644230840).

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

1322115240 is a wasteful number, since it uses less digits than its factorization.

1322115240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11017641 (or 11017637 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1322115240 is about 36360.9026290602. The cubic root of 1322115240 is about 1097.5469413283.

Adding to 1322115240 its reverse (425112231), we get a palindrome (1747227471).

The spelling of 1322115240 in words is "one billion, three hundred twenty-two million, one hundred fifteen thousand, two hundred forty".