1320442368 has 160 divisors (see below), whose sum is σ = 4056121344. Its totient is φ = 373911552.

The previous prime is 1320442349. The next prime is 1320442379. The reversal of 1320442368 is 8632440231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365021 + ... + 1365987.

Almost surely, 2^1320442368 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 1320442368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2028060672).

1320442368 is an abundant number, since it is smaller than the sum of its proper divisors (2735678976).

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

1320442368 is an equidigital number, since it uses as much as digits as its factorization.

1320442368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 1320442368 is about 36337.8916284366. The cubic root of 1320442368 is about 1097.0838373509.

Adding to 1320442368 its reverse (8632440231), we get a palindrome (9952882599).

The spelling of 1320442368 in words is "one billion, three hundred twenty million, four hundred forty-two thousand, three hundred sixty-eight".