13878700 has 108 divisors (see below), whose sum is σ = 35094976. Its totient is φ = 4752000.

The previous prime is 13878691. The next prime is 13878701. The reversal of 13878700 is 787831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13878701) 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 35 ways as a sum of consecutive naturals, for example, 375082 + ... + 375118.

Almost surely, 2^13878700 is an apocalyptic number.

13878700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13878700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17547488).

13878700 is an abundant number, since it is smaller than the sum of its proper divisors (21216276).

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

13878700 is a wasteful number, since it uses less digits than its factorization.

13878700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 13878700 is about 3725.4127288127. The cubic root of 13878700 is about 240.3161343226.

The spelling of 13878700 in words is "thirteen million, eight hundred seventy-eight thousand, seven hundred".