22194894 has 32 divisors (see below), whose sum is σ = 48279456. Its totient is φ = 6773760.

The previous prime is 22194883. The next prime is 22194917. The reversal of 22194894 is 49849122.

It is a super-2 number, since 2×22194894² = 985226639342472, which contains 22 as substring.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 834 + ... + 6714.

It is an arithmetic number, because the mean of its divisors is an integer number (1508733).

Almost surely, 2^22194894 is an apocalyptic number.

22194894 is an abundant number, since it is smaller than the sum of its proper divisors (26084562).

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

22194894 is a wasteful number, since it uses less digits than its factorization.

22194894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5940.

The product of its digits is 41472, while the sum is 39.

The square root of 22194894 is about 4711.1457205228. The cubic root of 22194894 is about 281.0289269157.

The spelling of 22194894 in words is "twenty-two million, one hundred ninety-four thousand, eight hundred ninety-four".