1320356928 has 56 divisors (see below), whose sum is σ = 3811036320. Its totient is φ = 400107520.

The previous prime is 1320356927. The next prime is 1320356977. The reversal of 1320356928 is 8296530231.

It is not an unprimeable number, because it can be changed into a prime (1320356927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310473 + ... + 314696.

It is an arithmetic number, because the mean of its divisors is an integer number (68054220).

Almost surely, 2^1320356928 is an apocalyptic number.

It is an amenable number.

1320356928 is an abundant number, since it is smaller than the sum of its proper divisors (2490679392).

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

1320356928 is a wasteful number, since it uses less digits than its factorization.

1320356928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625195 (or 625185 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 1320356928 is about 36336.7159770940. The cubic root of 1320356928 is about 1097.0601743556.

The spelling of 1320356928 in words is "one billion, three hundred twenty million, three hundred fifty-six thousand, nine hundred twenty-eight".