11965228 has 24 divisors (see below), whose sum is σ = 22977360. Its totient is φ = 5406720.

The previous prime is 11965207. The next prime is 11965237. The reversal of 11965228 is 82256911.

11965228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11965193 and 11965202.

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, 7788 + ... + 9196.

It is an arithmetic number, because the mean of its divisors is an integer number (957390).

Almost surely, 2^11965228 is an apocalyptic number.

It is an amenable number.

11965228 is a deficient number, since it is larger than the sum of its proper divisors (11012132).

11965228 is a wasteful number, since it uses less digits than its factorization.

11965228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1615 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 11965228 is about 3459.0790681914. The cubic root of 11965228 is about 228.7215012223.

The spelling of 11965228 in words is "eleven million, nine hundred sixty-five thousand, two hundred twenty-eight".