1389714186 has 24 divisors (see below), whose sum is σ = 3233213280. Its totient is φ = 397061112.

The previous prime is 1389714167. The next prime is 1389714187. The reversal of 1389714186 is 6814179831.

It is not an unprimeable number, because it can be changed into a prime (1389714187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2363166 + ... + 2363753.

It is an arithmetic number, because the mean of its divisors is an integer number (134717220).

Almost surely, 2^1389714186 is an apocalyptic number.

1389714186 is an abundant number, since it is smaller than the sum of its proper divisors (1843499094).

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

1389714186 is a wasteful number, since it uses less digits than its factorization.

1389714186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726938 (or 4726931 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 1389714186 is about 37278.8705032757. The cubic root of 1389714186 is about 1115.9425321444.

The spelling of 1389714186 in words is "one billion, three hundred eighty-nine million, seven hundred fourteen thousand, one hundred eighty-six".