22200442 has 16 divisors (see below), whose sum is σ = 36469152. Its totient is φ = 10051920.

The previous prime is 22200421. The next prime is 22200443. The reversal of 22200442 is 24400222.

It is not an unprimeable number, because it can be changed into a prime (22200443) 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, 4273 + ... + 7915.

It is an arithmetic number, because the mean of its divisors is an integer number (2279322).

Almost surely, 2^22200442 is an apocalyptic number.

22200442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22200442 is a deficient number, since it is larger than the sum of its proper divisors (14268710).

22200442 is a wasteful number, since it uses less digits than its factorization.

22200442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 22200442 is about 4711.7345001602. The cubic root of 22200442 is about 281.0523409886.

Adding to 22200442 its reverse (24400222), we get a palindrome (46600664).

The spelling of 22200442 in words is "twenty-two million, two hundred thousand, four hundred forty-two".