1389585634 has 32 divisors (see below), whose sum is σ = 2290032000. Its totient is φ = 629846784.

The previous prime is 1389585623. The next prime is 1389585643. The reversal of 1389585634 is 4365859831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118947 + ... + 130105.

It is an arithmetic number, because the mean of its divisors is an integer number (71563500).

Almost surely, 2^1389585634 is an apocalyptic number.

1389585634 is a deficient number, since it is larger than the sum of its proper divisors (900446366).

1389585634 is a wasteful number, since it uses less digits than its factorization.

1389585634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11322.

The product of its digits is 3110400, while the sum is 52.

The square root of 1389585634 is about 37277.1462695309. The cubic root of 1389585634 is about 1115.9081219351.

The spelling of 1389585634 in words is "one billion, three hundred eighty-nine million, five hundred eighty-five thousand, six hundred thirty-four".