13890858 has 16 divisors (see below), whose sum is σ = 27820800. Its totient is φ = 4623776.

The previous prime is 13890839. The next prime is 13890907. The reversal of 13890858 is 85809831.

It is a Curzon number.

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, 5191 + ... + 7397.

It is an arithmetic number, because the mean of its divisors is an integer number (1738800).

Almost surely, 2^13890858 is an apocalyptic number.

13890858 is an abundant number, since it is smaller than the sum of its proper divisors (13929942).

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

13890858 is a wasteful number, since it uses less digits than its factorization.

13890858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 13890858 is about 3727.0441371146. The cubic root of 13890858 is about 240.3862876464.

The spelling of 13890858 in words is "thirteen million, eight hundred ninety thousand, eight hundred fifty-eight".