22245300 has 288 divisors, whose sum is σ = 89994240. Its totient is φ = 4579200.

The previous prime is 22245287. The next prime is 22245323. The reversal of 22245300 is 354222.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 207847 + ... + 207953.

It is an arithmetic number, because the mean of its divisors is an integer number (312480).

Almost surely, 2^22245300 is an apocalyptic number.

22245300 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 22245300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44997120).

22245300 is an abundant number, since it is smaller than the sum of its proper divisors (67748940).

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

22245300 is a wasteful number, since it uses less digits than its factorization.

22245300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22245300 is about 4716.4923407125. The cubic root of 22245300 is about 281.2415108549.

Adding to 22245300 its reverse (354222), we get a palindrome (22599522).

The spelling of 22245300 in words is "twenty-two million, two hundred forty-five thousand, three hundred".