22300000 has 72 divisors (see below), whose sum is σ = 55121472. Its totient is φ = 8880000.

The previous prime is 22299961. The next prime is 22300001. The reversal of 22300000 is 322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22300001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99889 + ... + 100111.

It is an arithmetic number, because the mean of its divisors is an integer number (765576).

Almost surely, 2^22300000 is an apocalyptic number.

22300000 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 22300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27560736).

22300000 is an abundant number, since it is smaller than the sum of its proper divisors (32821472).

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

22300000 is an frugal number, since it uses more digits than its factorization.

22300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 230 counting only the distinct ones).

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

The square root of 22300000 is about 4722.2875812470. The cubic root of 22300000 is about 281.4718414331.

Adding to 22300000 its reverse (322), we get a palindrome (22300322).

The spelling of 22300000 in words is "twenty-two million, three hundred thousand".