23220300 has 144 divisors (see below), whose sum is σ = 74057760. Its totient is φ = 5591040.

The previous prime is 23220289. The next prime is 23220313. The reversal of 23220300 is 302232.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 147822 + ... + 147978.

It is an arithmetic number, because the mean of its divisors is an integer number (514290).

Almost surely, 2^23220300 is an apocalyptic number.

23220300 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 23220300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37028880).

23220300 is an abundant number, since it is smaller than the sum of its proper divisors (50837460).

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

23220300 is a wasteful number, since it uses less digits than its factorization.

23220300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 23220300 is about 4818.7446498025. The cubic root of 23220300 is about 285.2917910280.

Adding to 23220300 its reverse (302232), we get a palindrome (23522532).

The spelling of 23220300 in words is "twenty-three million, two hundred twenty thousand, three hundred".