13985378 has 16 divisors (see below), whose sum is σ = 22951296. Its totient is φ = 6338640.

The previous prime is 13985353. The next prime is 13985381. The reversal of 13985378 is 87358931.

It is a happy number.

13985378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9500 + ... + 10872.

It is an arithmetic number, because the mean of its divisors is an integer number (1434456).

Almost surely, 2^13985378 is an apocalyptic number.

13985378 is a deficient number, since it is larger than the sum of its proper divisors (8965918).

13985378 is a wasteful number, since it uses less digits than its factorization.

13985378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849.

The product of its digits is 181440, while the sum is 44.

The square root of 13985378 is about 3739.7029293782. The cubic root of 13985378 is about 240.9302898074.

It can be divided in two parts, 139853 and 78, that added together give a palindrome (139931).

The spelling of 13985378 in words is "thirteen million, nine hundred eighty-five thousand, three hundred seventy-eight".