13989446 has 8 divisors (see below), whose sum is σ = 21496104. Its totient is φ = 6824080.

The previous prime is 13989433. The next prime is 13989449. The reversal of 13989446 is 64498931.

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

It is a junction number, because it is equal to n+sod(n) for n = 13989397 and 13989406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13989449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85220 + ... + 85383.

It is an arithmetic number, because the mean of its divisors is an integer number (2687013).

Almost surely, 2^13989446 is an apocalyptic number.

13989446 is a deficient number, since it is larger than the sum of its proper divisors (7506658).

13989446 is a wasteful number, since it uses less digits than its factorization.

13989446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170646.

The product of its digits is 186624, while the sum is 44.

The square root of 13989446 is about 3740.2467833019. The cubic root of 13989446 is about 240.9536477604.

The spelling of 13989446 in words is "thirteen million, nine hundred eighty-nine thousand, four hundred forty-six".