13074228 has 18 divisors (see below), whose sum is σ = 33048834. Its totient is φ = 4358064.

The previous prime is 13074211. The next prime is 13074233. The reversal of 13074228 is 82247031.

It can be written as a sum of positive squares in only one way, i.e., 8225424 + 4848804 = 2868^2 + 2202^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181551 + ... + 181622.

Almost surely, 2^13074228 is an apocalyptic number.

13074228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13074228 is an abundant number, since it is smaller than the sum of its proper divisors (19974606).

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

13074228 is a wasteful number, since it uses less digits than its factorization.

13074228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363183 (or 363178 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 13074228 is about 3615.8301951281. The cubic root of 13074228 is about 235.5801450076.

The spelling of 13074228 in words is "thirteen million, seventy-four thousand, two hundred twenty-eight".