22059890 has 8 divisors (see below), whose sum is σ = 39707820. Its totient is φ = 8823952.

The previous prime is 22059887. The next prime is 22059901. The reversal of 22059890 is 9895022.

It can be written as a sum of positive squares in 2 ways, for example, as 19035769 + 3024121 = 4363^2 + 1739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22059890.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102985 + ... + 1103004.

Almost surely, 2^22059890 is an apocalyptic number.

22059890 is a deficient number, since it is larger than the sum of its proper divisors (17647930).

22059890 is a wasteful number, since it uses less digits than its factorization.

22059890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205996.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 22059890 is about 4696.7957162304. The cubic root of 22059890 is about 280.4579665304.

The spelling of 22059890 in words is "twenty-two million, fifty-nine thousand, eight hundred ninety".