1322113240 has 64 divisors (see below), whose sum is σ = 3402884160. Its totient is φ = 452874240.

The previous prime is 1322113237. The next prime is 1322113279. The reversal of 1322113240 is 423112231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523180 + ... + 525700.

It is an arithmetic number, because the mean of its divisors is an integer number (53170065).

Almost surely, 2^1322113240 is an apocalyptic number.

1322113240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322113240 is an abundant number, since it is smaller than the sum of its proper divisors (2080770920).

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

1322113240 is a wasteful number, since it uses less digits than its factorization.

1322113240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412 (or 4408 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1322113240 is about 36360.8751269823. The cubic root of 1322113240 is about 1097.5463878982.

Adding to 1322113240 its reverse (423112231), we get a palindrome (1745225471).

The spelling of 1322113240 in words is "one billion, three hundred twenty-two million, one hundred thirteen thousand, two hundred forty".