13680346 has 8 divisors (see below), whose sum is σ = 20801844. Its totient is φ = 6746400.

The previous prime is 13680341. The next prime is 13680353. The reversal of 13680346 is 64308631.

It can be written as a sum of positive squares in 2 ways, for example, as 12145225 + 1535121 = 3485^2 + 1239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13680341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46705 + ... + 46996.

Almost surely, 2^13680346 is an apocalyptic number.

13680346 is a deficient number, since it is larger than the sum of its proper divisors (7121498).

13680346 is an equidigital number, since it uses as much as digits as its factorization.

13680346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93776.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 13680346 is about 3698.6951753287. The cubic root of 13680346 is about 239.1657726107.

Adding to 13680346 its reverse (64308631), we get a palindrome (77988977).

The spelling of 13680346 in words is "thirteen million, six hundred eighty thousand, three hundred forty-six".