22030000 has 50 divisors (see below), whose sum is σ = 53361044. Its totient is φ = 8808000.

The previous prime is 22029991. The next prime is 22030007. The reversal of 22030000 is 3022.

It is a tau number, because it is divible by the number of its divisors (50).

It is not an unprimeable number, because it can be changed into a prime (22030007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8899 + ... + 11101.

Almost surely, 2^22030000 is an apocalyptic number.

22030000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26680522).

22030000 is an abundant number, since it is smaller than the sum of its proper divisors (31331044).

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

22030000 is an equidigital number, since it uses as much as digits as its factorization.

22030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231 (or 2210 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 7.

The square root of 22030000 is about 4693.6126810805. The cubic root of 22030000 is about 280.3312406401.

Adding to 22030000 its reverse (3022), we get a palindrome (22033022).

The spelling of 22030000 in words is "twenty-two million, thirty thousand".