22243380 has 24 divisors (see below), whose sum is σ = 62281632. Its totient is φ = 5931552.

The previous prime is 22243379. The next prime is 22243387. The reversal of 22243380 is 8334222.

It is a self number, because there is not a number n which added to its sum of digits gives 22243380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22243387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185302 + ... + 185421.

It is an arithmetic number, because the mean of its divisors is an integer number (2595068).

Almost surely, 2^22243380 is an apocalyptic number.

22243380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22243380 is an abundant number, since it is smaller than the sum of its proper divisors (40038252).

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

22243380 is a wasteful number, since it uses less digits than its factorization.

22243380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370735 (or 370733 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 22243380 is about 4716.2887952287. The cubic root of 22243380 is about 281.2334192694.

The spelling of 22243380 in words is "twenty-two million, two hundred forty-three thousand, three hundred eighty".