13002228 has 24 divisors (see below), whose sum is σ = 33709760. Its totient is φ = 4334040.

The previous prime is 13002203. The next prime is 13002233. The reversal of 13002228 is 82220031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 13002228.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60088 + ... + 60303.

Almost surely, 2^13002228 is an apocalyptic number.

13002228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13002228 is an abundant number, since it is smaller than the sum of its proper divisors (20707532).

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

13002228 is a wasteful number, since it uses less digits than its factorization.

13002228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120404 (or 120396 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 13002228 is about 3605.8602302363. The cubic root of 13002228 is about 235.1469007578.

Adding to 13002228 its reverse (82220031), we get a palindrome (95222259).

The spelling of 13002228 in words is "thirteen million, two thousand, two hundred twenty-eight".