13766228 has 12 divisors (see below), whose sum is σ = 27532512. Its totient is φ = 5899800.

The previous prime is 13766227. The next prime is 13766251. The reversal of 13766228 is 82266731.

It is a happy number.

13766228 is an admirable number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13766227) 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, 245798 + ... + 245853.

It is an arithmetic number, because the mean of its divisors is an integer number (2294376).

Almost surely, 2^13766228 is an apocalyptic number.

It is an amenable number.

13766228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13766228 is a wasteful number, since it uses less digits than its factorization.

13766228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491662 (or 491660 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 13766228 is about 3710.2867813688. The cubic root of 13766228 is about 239.6652044800.

The spelling of 13766228 in words is "thirteen million, seven hundred sixty-six thousand, two hundred twenty-eight".