13801844 has 24 divisors (see below), whose sum is σ = 27753600. Its totient is φ = 5882976.

The previous prime is 13801787. The next prime is 13801849. The reversal of 13801844 is 44810831.

13801844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13801849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4334 + ... + 6810.

It is an arithmetic number, because the mean of its divisors is an integer number (1156400).

Almost surely, 2^13801844 is an apocalyptic number.

13801844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13801844 is an abundant number, since it is smaller than the sum of its proper divisors (13951756).

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

13801844 is a wasteful number, since it uses less digits than its factorization.

13801844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687 (or 2685 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 13801844 is about 3715.0833099676. The cubic root of 13801844 is about 239.8717138474.

The spelling of 13801844 in words is "thirteen million, eight hundred one thousand, eight hundred forty-four".