22019928 has 32 divisors (see below), whose sum is σ = 62914560. Its totient is φ = 6291360.

The previous prime is 22019927. The next prime is 22019941. The reversal of 22019928 is 82991022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22019927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65368 + ... + 65703.

It is an arithmetic number, because the mean of its divisors is an integer number (1966080).

Almost surely, 2^22019928 is an apocalyptic number.

22019928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22019928 is an abundant number, since it is smaller than the sum of its proper divisors (40894632).

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

22019928 is a wasteful number, since it uses less digits than its factorization.

22019928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131087 (or 131083 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 22019928 is about 4692.5396109143. The cubic root of 22019928 is about 280.2885121387.

The spelling of 22019928 in words is "twenty-two million, nineteen thousand, nine hundred twenty-eight".