13863228 has 24 divisors (see below), whose sum is σ = 34250832. Its totient is φ = 4349184.

The previous prime is 13863221. The next prime is 13863233. The reversal of 13863228 is 82236831.

13863228 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 (13863221) 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, 33775 + ... + 34182.

It is an arithmetic number, because the mean of its divisors is an integer number (1427118).

Almost surely, 2^13863228 is an apocalyptic number.

It is an amenable number.

13863228 is an abundant number, since it is smaller than the sum of its proper divisors (20387604).

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

13863228 is a wasteful number, since it uses less digits than its factorization.

13863228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67981 (or 67979 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 13863228 is about 3723.3356013124. The cubic root of 13863228 is about 240.2267994963.

The spelling of 13863228 in words is "thirteen million, eight hundred sixty-three thousand, two hundred twenty-eight".