13890536 has 32 divisors (see below), whose sum is σ = 29397600. Its totient is φ = 6095040.

The previous prime is 13890509. The next prime is 13890553. The reversal of 13890536 is 63509831.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13890496 and 13890505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170 + ... + 5273.

It is an arithmetic number, because the mean of its divisors is an integer number (918675).

Almost surely, 2^13890536 is an apocalyptic number.

It is an amenable number.

13890536 is an abundant number, since it is smaller than the sum of its proper divisors (15507064).

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

13890536 is a wasteful number, since it uses less digits than its factorization.

13890536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489 (or 5485 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 13890536 is about 3727.0009390930. Note that the first 3 decimals coincide. The cubic root of 13890536 is about 240.3844301901.

The spelling of 13890536 in words is "thirteen million, eight hundred ninety thousand, five hundred thirty-six".