22263900 has 72 divisors (see below), whose sum is σ = 65829120. Its totient is φ = 5807040.

The previous prime is 22263887. The next prime is 22263907. The reversal of 22263900 is 936222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22263907) 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 23 ways as a sum of consecutive naturals, for example, 13311 + ... + 14889.

Almost surely, 2^22263900 is an apocalyptic number.

22263900 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 22263900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32914560).

22263900 is an abundant number, since it is smaller than the sum of its proper divisors (43565220).

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

22263900 is a wasteful number, since it uses less digits than its factorization.

22263900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 22263900 is about 4718.4637330385. The cubic root of 22263900 is about 281.3198739970.

The spelling of 22263900 in words is "twenty-two million, two hundred sixty-three thousand, nine hundred".