13878954 has 24 divisors (see below), whose sum is σ = 30384900. Its totient is φ = 4578048.

The previous prime is 13878937. The next prime is 13878967. The reversal of 13878954 is 45987831.

It can be written as a sum of positive squares in 2 ways, for example, as 13860729 + 18225 = 3723^2 + 135^2 .

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2229 + ... + 5720.

Almost surely, 2^13878954 is an apocalyptic number.

13878954 is an abundant number, since it is smaller than the sum of its proper divisors (16505946).

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

13878954 is a wasteful number, since it uses less digits than its factorization.

13878954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8054 (or 8051 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 13878954 is about 3725.4468188393. The cubic root of 13878954 is about 240.3176003563.

The spelling of 13878954 in words is "thirteen million, eight hundred seventy-eight thousand, nine hundred fifty-four".