13890612 has 24 divisors (see below), whose sum is σ = 32471712. Its totient is φ = 4621600.

The previous prime is 13890599. The next prime is 13890619. The reversal of 13890612 is 21609831.

It is a self number, because there is not a number n which added to its sum of digits gives 13890612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890619) 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, 12187 + ... + 13277.

It is an arithmetic number, because the mean of its divisors is an integer number (1352988).

Almost surely, 2^13890612 is an apocalyptic number.

13890612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13890612 is an abundant number, since it is smaller than the sum of its proper divisors (18581100).

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

13890612 is a wasteful number, since it uses less digits than its factorization.

13890612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2157 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 13890612 is about 3727.0111349445. The cubic root of 13890612 is about 240.3848685985.

The spelling of 13890612 in words is "thirteen million, eight hundred ninety thousand, six hundred twelve".