22229892 has 72 divisors (see below), whose sum is σ = 58968000. Its totient is φ = 7051968.

The previous prime is 22229873. The next prime is 22229903. The reversal of 22229892 is 29892222.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 111609 + ... + 111807.

It is an arithmetic number, because the mean of its divisors is an integer number (819000).

Almost surely, 2^22229892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22229892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29484000).

22229892 is an abundant number, since it is smaller than the sum of its proper divisors (36738108).

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

22229892 is a wasteful number, since it uses less digits than its factorization.

22229892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 340 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 22229892 is about 4714.8586405109. The cubic root of 22229892 is about 281.1765627524.

The spelling of 22229892 in words is "twenty-two million, two hundred twenty-nine thousand, eight hundred ninety-two".