22194800 has 30 divisors (see below), whose sum is σ = 53323968. Its totient is φ = 8877760.

The previous prime is 22194787. The next prime is 22194803. The reversal of 22194800 is 849122.

It is a self number, because there is not a number n which added to its sum of digits gives 22194800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22194803) 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 5 ways as a sum of consecutive naturals, for example, 27344 + ... + 28143.

Almost surely, 2^22194800 is an apocalyptic number.

22194800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22194800 is an abundant number, since it is smaller than the sum of its proper divisors (31129168).

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

22194800 is a wasteful number, since it uses less digits than its factorization.

22194800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55505 (or 55494 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22194800 is about 4711.1357441704. The cubic root of 22194800 is about 281.0285301765.

The spelling of 22194800 in words is "twenty-two million, one hundred ninety-four thousand, eight hundred".