1320605676 has 36 divisors (see below), whose sum is σ = 3594983392. Its totient is φ = 406340064.

The previous prime is 1320605669. The next prime is 1320605677. The reversal of 1320605676 is 6765060231.

1320605676 is a `hidden beast` number, since 1 + 32 + 0 + 60 + 567 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1320605676.

It is not an unprimeable number, because it can be changed into a prime (1320605677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1410436 + ... + 1411371.

Almost surely, 2^1320605676 is an apocalyptic number.

It is an amenable number.

1320605676 is an abundant number, since it is smaller than the sum of its proper divisors (2274377716).

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

1320605676 is a wasteful number, since it uses less digits than its factorization.

1320605676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821830 (or 2821825 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1320605676 is about 36340.1386348484. The cubic root of 1320605676 is about 1097.1290634020.

The spelling of 1320605676 in words is "one billion, three hundred twenty million, six hundred five thousand, six hundred seventy-six".