22189730 has 16 divisors (see below), whose sum is σ = 40538880. Its totient is φ = 8743152.

The previous prime is 22189729. The next prime is 22189793. The reversal of 22189730 is 3798122.

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 7 ways as a sum of consecutive naturals, for example, 15890 + ... + 17229.

It is an arithmetic number, because the mean of its divisors is an integer number (2533680).

Almost surely, 2^22189730 is an apocalyptic number.

22189730 is a deficient number, since it is larger than the sum of its proper divisors (18349150).

22189730 is a wasteful number, since it uses less digits than its factorization.

22189730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33193.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 22189730 is about 4710.5976266287. The cubic root of 22189730 is about 281.0071299213.

The spelling of 22189730 in words is "twenty-two million, one hundred eighty-nine thousand, seven hundred thirty".