22098930 has 64 divisors (see below), whose sum is σ = 61931520. Its totient is φ = 4941504.

The previous prime is 22098913. The next prime is 22098931. The reversal of 22098930 is 3989022.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22098891 and 22098900.

It is not an unprimeable number, because it can be changed into a prime (22098931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8751 + ... + 10989.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^22098930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22098930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30965760).

22098930 is an abundant number, since it is smaller than the sum of its proper divisors (39832590).

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

22098930 is a wasteful number, since it uses less digits than its factorization.

22098930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 22098930 is about 4700.9499040088. The cubic root of 22098930 is about 280.6233137796.

The spelling of 22098930 in words is "twenty-two million, ninety-eight thousand, nine hundred thirty".