13878484 has 12 divisors (see below), whose sum is σ = 24335584. Its totient is φ = 6925464.

The previous prime is 13878481. The next prime is 13878509. The reversal of 13878484 is 48487831.

13878484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13878484² = 385224636276512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13878484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13878481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984 + ... + 5359.

Almost surely, 2^13878484 is an apocalyptic number.

It is an amenable number.

13878484 is a deficient number, since it is larger than the sum of its proper divisors (10457100).

13878484 is a wasteful number, since it uses less digits than its factorization.

13878484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6894 (or 6892 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 13878484 is about 3725.3837386234. The cubic root of 13878484 is about 240.3148876027.

The spelling of 13878484 in words is "thirteen million, eight hundred seventy-eight thousand, four hundred eighty-four".