13645894 has 8 divisors (see below), whose sum is σ = 20587680. Its totient is φ = 6783336.

The previous prime is 13645847. The next prime is 13645897. The reversal of 13645894 is 49854631.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13645897) 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, 19374 + ... + 20065.

It is an arithmetic number, because the mean of its divisors is an integer number (2573460).

Almost surely, 2^13645894 is an apocalyptic number.

13645894 is a deficient number, since it is larger than the sum of its proper divisors (6941786).

13645894 is a wasteful number, since it uses less digits than its factorization.

13645894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39614.

The product of its digits is 103680, while the sum is 40.

The square root of 13645894 is about 3694.0349213293. The cubic root of 13645894 is about 238.9648355447.

The spelling of 13645894 in words is "thirteen million, six hundred forty-five thousand, eight hundred ninety-four".