1320939188 has 12 divisors (see below), whose sum is σ = 2365403040. Its totient is φ = 645109752.

The previous prime is 1320939173. The next prime is 1320939199. The reversal of 1320939188 is 8819390231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3839768 + ... + 3840111.

It is an arithmetic number, because the mean of its divisors is an integer number (197116920).

Almost surely, 2^1320939188 is an apocalyptic number.

It is an amenable number.

1320939188 is a deficient number, since it is larger than the sum of its proper divisors (1044463852).

1320939188 is a wasteful number, since it uses less digits than its factorization.

1320939188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679926 (or 7679924 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 1320939188 is about 36344.7271003649. The cubic root of 1320939188 is about 1097.2214136815.

The spelling of 1320939188 in words is "one billion, three hundred twenty million, nine hundred thirty-nine thousand, one hundred eighty-eight".