13840880 has 40 divisors (see below), whose sum is σ = 33224064. Its totient is φ = 5356800.

The previous prime is 13840877. The next prime is 13840909. The reversal of 13840880 is 8804831.

13840880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311 + ... + 5270.

Almost surely, 2^13840880 is an apocalyptic number.

13840880 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 13840880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16612032).

13840880 is an abundant number, since it is smaller than the sum of its proper divisors (19383184).

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

13840880 is a wasteful number, since it uses less digits than its factorization.

13840880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5625 (or 5619 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 13840880 is about 3720.3333184004. Note that the first 4 decimals coincide. The cubic root of 13840880 is about 240.0976454522.

The spelling of 13840880 in words is "thirteen million, eight hundred forty thousand, eight hundred eighty".