12752228 has 24 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 6022688.

The previous prime is 12752183. The next prime is 12752231. The reversal of 12752228 is 82225721.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 12752228.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4283 + ... + 6621.

It is an arithmetic number, because the mean of its divisors is an integer number (982800).

Almost surely, 2^12752228 is an apocalyptic number.

It is an amenable number.

12752228 is a deficient number, since it is larger than the sum of its proper divisors (10834972).

12752228 is a wasteful number, since it uses less digits than its factorization.

12752228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419 (or 2417 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 12752228 is about 3571.0261830460. The cubic root of 12752228 is about 233.6300434009.

Adding to 12752228 its reverse (82225721), we get a palindrome (94977949).

The spelling of 12752228 in words is "twelve million, seven hundred fifty-two thousand, two hundred twenty-eight".