22001058 has 40 divisors (see below), whose sum is σ = 50059152. Its totient is φ = 7220664.

The previous prime is 22001047. The next prime is 22001071. The reversal of 22001058 is 85010022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 22001058.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9841 + ... + 11867.

Almost surely, 2^22001058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22001058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25029576).

22001058 is an abundant number, since it is smaller than the sum of its proper divisors (28058094).

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

22001058 is a wasteful number, since it uses less digits than its factorization.

22001058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108 (or 2099 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 22001058 is about 4690.5285416465. The cubic root of 22001058 is about 280.2084247475.

The spelling of 22001058 in words is "twenty-two million, one thousand, fifty-eight".