13399378 has 8 divisors (see below), whose sum is σ = 20747520. Its totient is φ = 6483540.

The previous prime is 13399361. The next prime is 13399387. The reversal of 13399378 is 87399331.

13399378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107998 + ... + 108121.

It is an arithmetic number, because the mean of its divisors is an integer number (2593440).

Almost surely, 2^13399378 is an apocalyptic number.

13399378 is a deficient number, since it is larger than the sum of its proper divisors (7348142).

13399378 is a wasteful number, since it uses less digits than its factorization.

13399378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216152.

The product of its digits is 122472, while the sum is 43.

The square root of 13399378 is about 3660.5160838330. The cubic root of 13399378 is about 237.5170986766.

The spelling of 13399378 in words is "thirteen million, three hundred ninety-nine thousand, three hundred seventy-eight".