13890435 has 16 divisors (see below), whose sum is σ = 23934624. Its totient is φ = 6838272.

The previous prime is 13890433. The next prime is 13890439. The reversal of 13890435 is 53409831.

It is not a de Polignac number, because 13890435 - 2¹ = 13890433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13890396 and 13890405.

It is not an unprimeable number, because it can be changed into a prime (13890433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35422 + ... + 35811.

It is an arithmetic number, because the mean of its divisors is an integer number (1495914).

Almost surely, 2^13890435 is an apocalyptic number.

13890435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13890435 is a deficient number, since it is larger than the sum of its proper divisors (10044189).

13890435 is a wasteful number, since it uses less digits than its factorization.

13890435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71254.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 13890435 is about 3726.9873892998. The cubic root of 13890435 is about 240.3838475660.

The spelling of 13890435 in words is "thirteen million, eight hundred ninety thousand, four hundred thirty-five".