13680290 has 32 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 4941504.

The previous prime is 13680259. The next prime is 13680299. The reversal of 13680290 is 9208631.

13680290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13680299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4991 + ... + 7229.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 2^13680290 is an apocalyptic number.

13680290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13680290 is a deficient number, since it is larger than the sum of its proper divisors (13414750).

13680290 is a wasteful number, since it uses less digits than its factorization.

13680290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13680290 is about 3698.6876050837. The cubic root of 13680290 is about 239.1654462714.

The spelling of 13680290 in words is "thirteen million, six hundred eighty thousand, two hundred ninety".