22223028 has 12 divisors (see below), whose sum is σ = 51853760. Its totient is φ = 7407672.

The previous prime is 22223023. The next prime is 22223039. The reversal of 22223028 is 82032222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22222995 and 22223013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22223021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925948 + ... + 925971.

Almost surely, 2^22223028 is an apocalyptic number.

It is an amenable number.

22223028 is an abundant number, since it is smaller than the sum of its proper divisors (29630732).

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

22223028 is a wasteful number, since it uses less digits than its factorization.

22223028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851926 (or 1851924 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 22223028 is about 4714.1306727752. The cubic root of 22223028 is about 281.1476198227.

The spelling of 22223028 in words is "twenty-two million, two hundred twenty-three thousand, twenty-eight".