13878858 has 24 divisors (see below), whose sum is σ = 32290272. Its totient is φ = 3965304.

The previous prime is 13878841. The next prime is 13878859. The reversal of 13878858 is 85887831.

13878858 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13878859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23310 + ... + 23897.

It is an arithmetic number, because the mean of its divisors is an integer number (1345428).

Almost surely, 2^13878858 is an apocalyptic number.

13878858 is an abundant number, since it is smaller than the sum of its proper divisors (18411414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13878858 is a wasteful number, since it uses less digits than its factorization.

13878858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47226 (or 47219 counting only the distinct ones).

The product of its digits is 430080, while the sum is 48.

The square root of 13878858 is about 3725.4339344565. The cubic root of 13878858 is about 240.3170462670.

The spelling of 13878858 in words is "thirteen million, eight hundred seventy-eight thousand, eight hundred fifty-eight".