1399310802 has 30 divisors (see below), whose sum is σ = 3136559943. Its totient is φ = 466278228.

The previous prime is 1399310791. The next prime is 1399310821. The reversal of 1399310802 is 2080139931.

It can be written as a sum of positive squares in only one way, i.e., 699655401 + 699655401 = 26451^2 + 26451^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=26451.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 474649 + ... + 477587.

Almost surely, 2^1399310802 is an apocalyptic number.

1399310802 is an abundant number, since it is smaller than the sum of its proper divisors (1737249141).

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

1399310802 is an frugal number, since it uses more digits than its factorization.

1399310802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5892 (or 2944 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1399310802 is about 37407.3629383307. The cubic root of 1399310802 is about 1118.5053409545.

The spelling of 1399310802 in words is "one billion, three hundred ninety-nine million, three hundred ten thousand, eight hundred two".