22423028 has 12 divisors (see below), whose sum is σ = 39981060. Its totient is φ = 10999872.

The previous prime is 22423019. The next prime is 22423043. The reversal of 22423028 is 82032422.

It can be written as a sum of positive squares in 2 ways, for example, as 20268004 + 2155024 = 4502^2 + 1468^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22422994 and 22423012.

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 3 ways as a sum of consecutive naturals, for example, 52673 + ... + 53096.

It is an arithmetic number, because the mean of its divisors is an integer number (3331755).

Almost surely, 2^22423028 is an apocalyptic number.

It is an amenable number.

22423028 is a deficient number, since it is larger than the sum of its proper divisors (17558032).

22423028 is a wasteful number, since it uses less digits than its factorization.

22423028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105826 (or 105824 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 22423028 is about 4735.2959780778. The cubic root of 22423028 is about 281.9885145298.

The spelling of 22423028 in words is "twenty-two million, four hundred twenty-three thousand, twenty-eight".