22119428 has 6 divisors (see below), whose sum is σ = 38709006. Its totient is φ = 11059712.

The previous prime is 22119421. The next prime is 22119443. The reversal of 22119428 is 82491122.

It can be written as a sum of positive squares in only one way, i.e., 21603904 + 515524 = 4648^2 + 718^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22119428.

It is not an unprimeable number, because it can be changed into a prime (22119421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2764925 + ... + 2764932.

It is an arithmetic number, because the mean of its divisors is an integer number (6451501).

Almost surely, 2^22119428 is an apocalyptic number.

It is an amenable number.

22119428 is a deficient number, since it is larger than the sum of its proper divisors (16589578).

22119428 is a wasteful number, since it uses less digits than its factorization.

22119428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5529861 (or 5529859 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 22119428 is about 4703.1295963433. The cubic root of 22119428 is about 280.7100516006.

The spelling of 22119428 in words is "twenty-two million, one hundred nineteen thousand, four hundred twenty-eight".