13890852 has 72 divisors (see below), whose sum is σ = 37669632. Its totient is φ = 4471200.

The previous prime is 13890839. The next prime is 13890907. The reversal of 13890852 is 25809831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 29902 + ... + 30362.

Almost surely, 2^13890852 is an apocalyptic number.

13890852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13890852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18834816).

13890852 is an abundant number, since it is smaller than the sum of its proper divisors (23778780).

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

13890852 is a wasteful number, since it uses less digits than its factorization.

13890852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 13890852 is about 3727.0433321871. The cubic root of 13890852 is about 240.3862530357.

The spelling of 13890852 in words is "thirteen million, eight hundred ninety thousand, eight hundred fifty-two".