13644382 has 16 divisors (see below), whose sum is σ = 21814272. Its totient is φ = 6385720.

The previous prime is 13644361. The next prime is 13644383. The reversal of 13644382 is 28344631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13644383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994 + ... + 5317.

It is an arithmetic number, because the mean of its divisors is an integer number (1363392).

Almost surely, 2^13644382 is an apocalyptic number.

13644382 is a deficient number, since it is larger than the sum of its proper divisors (8169890).

13644382 is a wasteful number, since it uses less digits than its factorization.

13644382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6383.

The product of its digits is 13824, while the sum is 31.

The square root of 13644382 is about 3693.8302613953. The cubic root of 13644382 is about 238.9560092468.

The spelling of 13644382 in words is "thirteen million, six hundred forty-four thousand, three hundred eighty-two".