1538716386 has 16 divisors (see below), whose sum is σ = 3149001504. Its totient is φ = 500977344.

The previous prime is 1538716369. The next prime is 1538716397. The reversal of 1538716386 is 6836178351.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2981751 + ... + 2982266.

It is an arithmetic number, because the mean of its divisors is an integer number (196812594).

Almost surely, 2^1538716386 is an apocalyptic number.

1538716386 is an abundant number, since it is smaller than the sum of its proper divisors (1610285118).

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

1538716386 is a wasteful number, since it uses less digits than its factorization.

1538716386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964065.

The product of its digits is 725760, while the sum is 48.

The square root of 1538716386 is about 39226.4755745402. The cubic root of 1538716386 is about 1154.4794130767.

The spelling of 1538716386 in words is "one billion, five hundred thirty-eight million, seven hundred sixteen thousand, three hundred eighty-six".