1399986752 has 28 divisors (see below), whose sum is σ = 2779288320. Its totient is φ = 699693696.

The previous prime is 1399986739. The next prime is 1399986769. The reversal of 1399986752 is 2576899931.

It is a junction number, because it is equal to n+sod(n) for n = 1399986691 and 1399986700.

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, 282149 + ... + 287067.

Almost surely, 2^1399986752 is an apocalyptic number.

It is an amenable number.

1399986752 is a deficient number, since it is larger than the sum of its proper divisors (1379301568).

1399986752 is an equidigital number, since it uses as much as digits as its factorization.

1399986752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9378 (or 9368 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 59.

The square root of 1399986752 is about 37416.3968334740. The cubic root of 1399986752 is about 1118.6854134057.

The spelling of 1399986752 in words is "one billion, three hundred ninety-nine million, nine hundred eighty-six thousand, seven hundred fifty-two".