13649228 has 12 divisors (see below), whose sum is σ = 24469032. Its totient is φ = 6658080.

The previous prime is 13649213. The next prime is 13649231. The reversal of 13649228 is 82294631.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41450 + ... + 41777.

It is an arithmetic number, because the mean of its divisors is an integer number (2039086).

Almost surely, 2^13649228 is an apocalyptic number.

It is an amenable number.

13649228 is a deficient number, since it is larger than the sum of its proper divisors (10819804).

13649228 is a wasteful number, since it uses less digits than its factorization.

13649228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83272 (or 83270 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 13649228 is about 3694.4861618363. The cubic root of 13649228 is about 238.9842954615.

The spelling of 13649228 in words is "thirteen million, six hundred forty-nine thousand, two hundred twenty-eight".