1320239884 has 12 divisors (see below), whose sum is σ = 2336380200. Its totient is φ = 652702688.

The previous prime is 1320239881. The next prime is 1320239887. The reversal of 1320239884 is 4889320231.

It is an interprime number because it is at equal distance from previous prime (1320239881) and next prime (1320239887).

It is not an unprimeable number, because it can be changed into a prime (1320239881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1853914 + ... + 1854625.

It is an arithmetic number, because the mean of its divisors is an integer number (194698350).

Almost surely, 2^1320239884 is an apocalyptic number.

It is an amenable number.

1320239884 is a deficient number, since it is larger than the sum of its proper divisors (1016140316).

1320239884 is a wasteful number, since it uses less digits than its factorization.

1320239884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708632 (or 3708630 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1320239884 is about 36335.1053940951. The cubic root of 1320239884 is about 1097.0277568320.

The spelling of 1320239884 in words is "one billion, three hundred twenty million, two hundred thirty-nine thousand, eight hundred eighty-four".