13878046 has 16 divisors (see below), whose sum is σ = 25621344. Its totient is φ = 5490144.

The previous prime is 13878043. The next prime is 13878047. The reversal of 13878046 is 64087831.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13877996 and 13878014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13878043) 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 7 ways as a sum of consecutive naturals, for example, 37945 + ... + 38308.

It is an arithmetic number, because the mean of its divisors is an integer number (1601334).

Almost surely, 2^13878046 is an apocalyptic number.

13878046 is a deficient number, since it is larger than the sum of its proper divisors (11743298).

13878046 is a wasteful number, since it uses less digits than its factorization.

13878046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76275.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 13878046 is about 3725.3249522693. The cubic root of 13878046 is about 240.3123594921.

The spelling of 13878046 in words is "thirteen million, eight hundred seventy-eight thousand, forty-six".