13890634 has 16 divisors (see below), whose sum is σ = 22445280. Its totient is φ = 6426000.

The previous prime is 13890629. The next prime is 13890637. The reversal of 13890634 is 43609831.

It is a self number, because there is not a number n which added to its sum of digits gives 13890634.

It is not an unprimeable number, because it can be changed into a prime (13890637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2617 + ... + 5884.

It is an arithmetic number, because the mean of its divisors is an integer number (1402830).

Almost surely, 2^13890634 is an apocalyptic number.

13890634 is a deficient number, since it is larger than the sum of its proper divisors (8554646).

13890634 is a wasteful number, since it uses less digits than its factorization.

13890634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8565.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 13890634 is about 3727.0140863699. The cubic root of 13890634 is about 240.3849955059.

The spelling of 13890634 in words is "thirteen million, eight hundred ninety thousand, six hundred thirty-four".