13052228 has 18 divisors (see below), whose sum is σ = 26571006. Its totient is φ = 5593728.

The previous prime is 13052191. The next prime is 13052261. The reversal of 13052228 is 82225031.

It can be written as a sum of positive squares in only one way, i.e., 10549504 + 2502724 = 3248^2 + 1582^2 .

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, 33101 + ... + 33492.

It is an arithmetic number, because the mean of its divisors is an integer number (1476167).

Almost surely, 2^13052228 is an apocalyptic number.

It is an amenable number.

13052228 is an abundant number, since it is smaller than the sum of its proper divisors (13518778).

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

13052228 is a wasteful number, since it uses less digits than its factorization.

13052228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66611 (or 66602 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 13052228 is about 3612.7867360253. The cubic root of 13052228 is about 235.4479339401.

Adding to 13052228 its reverse (82225031), we get a palindrome (95277259).

The spelling of 13052228 in words is "thirteen million, fifty-two thousand, two hundred twenty-eight".