11851228 has 12 divisors (see below), whose sum is σ = 21049672. Its totient is φ = 5837040.

The previous prime is 11851219. The next prime is 11851291. The reversal of 11851228 is 82215811.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11851196 and 11851205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21843 + ... + 22378.

Almost surely, 2^11851228 is an apocalyptic number.

It is an amenable number.

11851228 is a deficient number, since it is larger than the sum of its proper divisors (9198444).

11851228 is a wasteful number, since it uses less digits than its factorization.

11851228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44292 (or 44290 counting only the distinct ones).

The product of its digits is 1280, while the sum is 28.

The square root of 11851228 is about 3442.5612558094. The cubic root of 11851228 is about 227.9927924263.

The spelling of 11851228 in words is "eleven million, eight hundred fifty-one thousand, two hundred twenty-eight".