1387250604 has 24 divisors (see below), whose sum is σ = 3596575920. Its totient is φ = 462416832.

The previous prime is 1387250603. The next prime is 1387250639. The reversal of 1387250604 is 4060527831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1387250603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6422349 + ... + 6422564.

It is an arithmetic number, because the mean of its divisors is an integer number (149857330).

Almost surely, 2^1387250604 is an apocalyptic number.

It is an amenable number.

1387250604 is an abundant number, since it is smaller than the sum of its proper divisors (2209325316).

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

1387250604 is a wasteful number, since it uses less digits than its factorization.

1387250604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844926 (or 12844918 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1387250604 is about 37245.8132412222. The cubic root of 1387250604 is about 1115.2827221153.

The spelling of 1387250604 in words is "one billion, three hundred eighty-seven million, two hundred fifty thousand, six hundred four".