13805288 has 16 divisors (see below), whose sum is σ = 29582880. Its totient is φ = 5916528.

The previous prime is 13805287. The next prime is 13805291. The reversal of 13805288 is 88250831.

13805288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13805287) 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, 123206 + ... + 123317.

It is an arithmetic number, because the mean of its divisors is an integer number (1848930).

Almost surely, 2^13805288 is an apocalyptic number.

It is an amenable number.

13805288 is an abundant number, since it is smaller than the sum of its proper divisors (15777592).

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

13805288 is a wasteful number, since it uses less digits than its factorization.

13805288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246536 (or 246532 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 13805288 is about 3715.5467969062. The cubic root of 13805288 is about 239.8916640675.

The spelling of 13805288 in words is "thirteen million, eight hundred five thousand, two hundred eighty-eight".