13668494 has 16 divisors (see below), whose sum is σ = 23763456. Its totient is φ = 5775000.

The previous prime is 13668481. The next prime is 13668497. The reversal of 13668494 is 49486631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5882 + ... + 7869.

It is an arithmetic number, because the mean of its divisors is an integer number (1485216).

Almost surely, 2^13668494 is an apocalyptic number.

13668494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13668494 is a deficient number, since it is larger than the sum of its proper divisors (10094962).

13668494 is a wasteful number, since it uses less digits than its factorization.

13668494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13831.

The product of its digits is 124416, while the sum is 41.

The square root of 13668494 is about 3697.0926415225. The cubic root of 13668494 is about 239.0966853786.

The spelling of 13668494 in words is "thirteen million, six hundred sixty-eight thousand, four hundred ninety-four".