1399286932 has 12 divisors (see below), whose sum is σ = 2592796500. Its totient is φ = 658487936.

The previous prime is 1399286899. The next prime is 1399286963. The reversal of 1399286932 is 2396829931.

It can be written as a sum of positive squares in 2 ways, for example, as 1031951376 + 367335556 = 32124^2 + 19166^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1399286932.

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, 10288807 + ... + 10288942.

It is an arithmetic number, because the mean of its divisors is an integer number (216066375).

Almost surely, 2^1399286932 is an apocalyptic number.

It is an amenable number.

1399286932 is a deficient number, since it is larger than the sum of its proper divisors (1193509568).

1399286932 is a wasteful number, since it uses less digits than its factorization.

1399286932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20577770 (or 20577768 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 52.

The square root of 1399286932 is about 37407.0438821354. The cubic root of 1399286932 is about 1118.4989809488.

The spelling of 1399286932 in words is "one billion, three hundred ninety-nine million, two hundred eighty-six thousand, nine hundred thirty-two".