1320660322 has 16 divisors (see below), whose sum is σ = 2175917760. Its totient is φ = 598376592.

The previous prime is 1320660311. The next prime is 1320660331. The reversal of 1320660322 is 2230660231.

It is a happy number.

It is a super-2 number, since 2×1320660322² = 3488287372210287368, which contains 22 as substring.

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, 754653 + ... + 756400.

It is an arithmetic number, because the mean of its divisors is an integer number (135994860).

Almost surely, 2^1320660322 is an apocalyptic number.

1320660322 is a deficient number, since it is larger than the sum of its proper divisors (855257438).

1320660322 is a wasteful number, since it uses less digits than its factorization.

1320660322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511097.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1320660322 is about 36340.8904954185. The cubic root of 1320660322 is about 1097.1441960766.

Subtracting 1320660322 from its reverse (2230660231), we obtain a palindrome (909999909).

The spelling of 1320660322 in words is "one billion, three hundred twenty million, six hundred sixty thousand, three hundred twenty-two".