1387708132 has 12 divisors (see below), whose sum is σ = 2433974256. Its totient is φ = 692286920.

The previous prime is 1387708117. The next prime is 1387708163. The reversal of 1387708132 is 2318077831.

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, 389794 + ... + 393337.

It is an arithmetic number, because the mean of its divisors is an integer number (202831188).

Almost surely, 2^1387708132 is an apocalyptic number.

It is an amenable number.

1387708132 is a deficient number, since it is larger than the sum of its proper divisors (1046266124).

1387708132 is a wasteful number, since it uses less digits than its factorization.

1387708132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783578 (or 783576 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 1387708132 is about 37251.9547406576. The cubic root of 1387708132 is about 1115.4053188028.

The spelling of 1387708132 in words is "one billion, three hundred eighty-seven million, seven hundred eight thousand, one hundred thirty-two".