12790228 has 24 divisors (see below), whose sum is σ = 25208064. Its totient is φ = 5625600.

The previous prime is 12790199. The next prime is 12790241. The reversal of 12790228 is 82209721.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 12790228.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3325 + ... + 6052.

It is an arithmetic number, because the mean of its divisors is an integer number (1050336).

Almost surely, 2^12790228 is an apocalyptic number.

It is an amenable number.

12790228 is a deficient number, since it is larger than the sum of its proper divisors (12417836).

12790228 is a wasteful number, since it uses less digits than its factorization.

12790228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9423 (or 9421 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12790228 is about 3576.3428247303. The cubic root of 12790228 is about 233.8618757741.

Adding to 12790228 its reverse (82209721), we get a palindrome (94999949).

The spelling of 12790228 in words is "twelve million, seven hundred ninety thousand, two hundred twenty-eight".