22058728 has 16 divisors (see below), whose sum is σ = 41410080. Its totient is φ = 11016048.

The previous prime is 22058719. The next prime is 22058731. The reversal of 22058728 is 82785022.

It is a junction number, because it is equal to n+sod(n) for n = 22058693 and 22058702.

It is an unprimeable number.

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, 11451 + ... + 13237.

It is an arithmetic number, because the mean of its divisors is an integer number (2588130).

Almost surely, 2^22058728 is an apocalyptic number.

It is an amenable number.

22058728 is a deficient number, since it is larger than the sum of its proper divisors (19351352).

22058728 is a wasteful number, since it uses less digits than its factorization.

22058728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336 (or 3332 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 22058728 is about 4696.6720132451. The cubic root of 22058728 is about 280.4530420894.

The spelling of 22058728 in words is "twenty-two million, fifty-eight thousand, seven hundred twenty-eight".