1320648044 has 6 divisors (see below), whose sum is σ = 2311134084. Its totient is φ = 660324020.

The previous prime is 1320648001. The next prime is 1320648053. The reversal of 1320648044 is 4408460231.

It is a super-2 number, since 2×1320648044² = 3488222512242051872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1320648044.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165081002 + ... + 165081009.

It is an arithmetic number, because the mean of its divisors is an integer number (385189014).

Almost surely, 2^1320648044 is an apocalyptic number.

It is an amenable number.

1320648044 is a deficient number, since it is larger than the sum of its proper divisors (990486040).

1320648044 is a wasteful number, since it uses less digits than its factorization.

1320648044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330162015 (or 330162013 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 1320648044 is about 36340.7215668594. The cubic root of 1320648044 is about 1097.1407960657.

The spelling of 1320648044 in words is "one billion, three hundred twenty million, six hundred forty-eight thousand, forty-four".