13683220 has 24 divisors (see below), whose sum is σ = 28804608. Its totient is φ = 5460000.

The previous prime is 13683199. The next prime is 13683247. The reversal of 13683220 is 2238631.

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, 14565 + ... + 15475.

It is an arithmetic number, because the mean of its divisors is an integer number (1200192).

Almost surely, 2^13683220 is an apocalyptic number.

13683220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13683220 is an abundant number, since it is smaller than the sum of its proper divisors (15121388).

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

13683220 is a wasteful number, since it uses less digits than its factorization.

13683220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 13683220 is about 3699.0836703162. The cubic root of 13683220 is about 239.1825196116.

The spelling of 13683220 in words is "thirteen million, six hundred eighty-three thousand, two hundred twenty".