13816220 has 24 divisors (see below), whose sum is σ = 31652208. Its totient is φ = 5024000.

The previous prime is 13816217. The next prime is 13816241. The reversal of 13816220 is 2261831.

13816220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 31181 + ... + 31620.

It is an arithmetic number, because the mean of its divisors is an integer number (1318842).

Almost surely, 2^13816220 is an apocalyptic number.

13816220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13816220 is an abundant number, since it is smaller than the sum of its proper divisors (17835988).

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

13816220 is a wasteful number, since it uses less digits than its factorization.

13816220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62821 (or 62819 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 13816220 is about 3717.0176216962. The cubic root of 13816220 is about 239.9549684030.

The spelling of 13816220 in words is "thirteen million, eight hundred sixteen thousand, two hundred twenty".