1399189882 has 8 divisors (see below), whose sum is σ = 2101905396. Its totient is φ = 698554752.

The previous prime is 1399189873. The next prime is 1399189901. The reversal of 1399189882 is 2889819931.

It can be written as a sum of positive squares in 2 ways, for example, as 1298809521 + 100380361 = 36039^2 + 10019^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 518413 + ... + 521104.

Almost surely, 2^1399189882 is an apocalyptic number.

1399189882 is a deficient number, since it is larger than the sum of its proper divisors (702715514).

1399189882 is a wasteful number, since it uses less digits than its factorization.

1399189882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040192.

The product of its digits is 2239488, while the sum is 58.

The square root of 1399189882 is about 37405.7466440653. The cubic root of 1399189882 is about 1118.4731218646.

The spelling of 1399189882 in words is "one billion, three hundred ninety-nine million, one hundred eighty-nine thousand, eight hundred eighty-two".