22271800 has 48 divisors (see below), whose sum is σ = 54516600. Its totient is φ = 8438400.

The previous prime is 22271791. The next prime is 22271803. The reversal of 22271800 is 817222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22271803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 870 + ... + 6730.

Almost surely, 2^22271800 is an apocalyptic number.

22271800 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 22271800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27258300).

22271800 is an abundant number, since it is smaller than the sum of its proper divisors (32244800).

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

22271800 is a wasteful number, since it uses less digits than its factorization.

22271800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896 (or 5887 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 22271800 is about 4719.3007956688. The cubic root of 22271800 is about 281.3531440619.

The spelling of 22271800 in words is "twenty-two million, two hundred seventy-one thousand, eight hundred".