22286428 has 6 divisors (see below), whose sum is σ = 39001256. Its totient is φ = 11143212.

The previous prime is 22286423. The next prime is 22286431. The reversal of 22286428 is 82468222.

It is a junction number, because it is equal to n+sod(n) for n = 22286393 and 22286402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22286423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2785800 + ... + 2785807.

Almost surely, 2^22286428 is an apocalyptic number.

It is an amenable number.

22286428 is a deficient number, since it is larger than the sum of its proper divisors (16714828).

22286428 is a wasteful number, since it uses less digits than its factorization.

22286428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571611 (or 5571609 counting only the distinct ones).

The product of its digits is 24576, while the sum is 34.

The square root of 22286428 is about 4720.8503471303. The cubic root of 22286428 is about 281.4147276650.

The spelling of 22286428 in words is "twenty-two million, two hundred eighty-six thousand, four hundred twenty-eight".