1320652672 has 32 divisors (see below), whose sum is σ = 2658136320. Its totient is φ = 653512704.

The previous prime is 1320652661. The next prime is 1320652673. The reversal of 1320652672 is 2762560231.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320652673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40768 + ... + 65599.

It is an arithmetic number, because the mean of its divisors is an integer number (83066760).

Almost surely, 2^1320652672 is an apocalyptic number.

It is an amenable number.

1320652672 is an abundant number, since it is smaller than the sum of its proper divisors (1337483648).

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

1320652672 is an equidigital number, since it uses as much as digits as its factorization.

1320652672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106478 (or 106466 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 1320652672 is about 36340.7852419289. The cubic root of 1320652672 is about 1097.1420776491.

The spelling of 1320652672 in words is "one billion, three hundred twenty million, six hundred fifty-two thousand, six hundred seventy-two".