22201842 has 64 divisors (see below), whose sum is σ = 51287040. Its totient is φ = 6350400.

The previous prime is 22201819. The next prime is 22201867. The reversal of 22201842 is 24810222.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 105117 + ... + 105327.

It is an arithmetic number, because the mean of its divisors is an integer number (801360).

Almost surely, 2^22201842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22201842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25643520).

22201842 is an abundant number, since it is smaller than the sum of its proper divisors (29085198).

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

22201842 is a wasteful number, since it uses less digits than its factorization.

22201842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 22201842 is about 4711.8830630651. The cubic root of 22201842 is about 281.0582487539.

The spelling of 22201842 in words is "twenty-two million, two hundred one thousand, eight hundred forty-two".