1386815568 has 40 divisors (see below), whose sum is σ = 3592799808. Its totient is φ = 460956672.

The previous prime is 1386815561. The next prime is 1386815603. The reversal of 1386815568 is 8655186831.

It is a self number, because there is not a number n which added to its sum of digits gives 1386815568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386815561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23980 + ... + 57867.

Almost surely, 2^1386815568 is an apocalyptic number.

It is an amenable number.

1386815568 is an abundant number, since it is smaller than the sum of its proper divisors (2205984240).

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

1386815568 is a wasteful number, since it uses less digits than its factorization.

1386815568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82211 (or 82205 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 51.

The square root of 1386815568 is about 37239.9727174981. The cubic root of 1386815568 is about 1115.1661272575.

The spelling of 1386815568 in words is "one billion, three hundred eighty-six million, eight hundred fifteen thousand, five hundred sixty-eight".