12695228 has 24 divisors (see below), whose sum is σ = 27344352. Its totient is φ = 5022144.

The previous prime is 12695219. The next prime is 12695231. The reversal of 12695228 is 82259621.

It is a happy number.

It is a super-2 number, since 2×12695228² = 322337627943968, which contains 22 as substring.

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, 17075 + ... + 17802.

It is an arithmetic number, because the mean of its divisors is an integer number (1139348).

Almost surely, 2^12695228 is an apocalyptic number.

It is an amenable number.

12695228 is an abundant number, since it is smaller than the sum of its proper divisors (14649124).

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

12695228 is a wasteful number, since it uses less digits than its factorization.

12695228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34901 (or 34899 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 12695228 is about 3563.0363455907. The cubic root of 12695228 is about 233.2814297250.

The spelling of 12695228 in words is "twelve million, six hundred ninety-five thousand, two hundred twenty-eight".