1387062660 has 48 divisors (see below), whose sum is σ = 3988748736. Its totient is φ = 359885952.

The previous prime is 1387062647. The next prime is 1387062671. The reversal of 1387062660 is 662607831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310182 + ... + 314621.

It is an arithmetic number, because the mean of its divisors is an integer number (83098932).

Almost surely, 2^1387062660 is an apocalyptic number.

1387062660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1387062660 is an abundant number, since it is smaller than the sum of its proper divisors (2601686076).

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

1387062660 is a wasteful number, since it uses less digits than its factorization.

1387062660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624852 (or 624850 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 1387062660 is about 37243.2901339288. The cubic root of 1387062660 is about 1115.2323538637.

The spelling of 1387062660 in words is "one billion, three hundred eighty-seven million, sixty-two thousand, six hundred sixty".