1386574138 has 8 divisors (see below), whose sum is σ = 2146953600. Its totient is φ = 670922940.

The previous prime is 1386574127. The next prime is 1386574139. The reversal of 1386574138 is 8314756831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1386574139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11181988 + ... + 11182111.

It is an arithmetic number, because the mean of its divisors is an integer number (268369200).

Almost surely, 2^1386574138 is an apocalyptic number.

1386574138 is a deficient number, since it is larger than the sum of its proper divisors (760379462).

1386574138 is a wasteful number, since it uses less digits than its factorization.

1386574138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22364132.

The product of its digits is 483840, while the sum is 46.

The square root of 1386574138 is about 37236.7310326779. The cubic root of 1386574138 is about 1115.1014106051.

The spelling of 1386574138 in words is "one billion, three hundred eighty-six million, five hundred seventy-four thousand, one hundred thirty-eight".