22194722 has 8 divisors (see below), whose sum is σ = 36318672. Its totient is φ = 10088500.

The previous prime is 22194721. The next prime is 22194727. The reversal of 22194722 is 22749122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22194721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504404 + ... + 504447.

It is an arithmetic number, because the mean of its divisors is an integer number (4539834).

Almost surely, 2^22194722 is an apocalyptic number.

22194722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22194722 is a deficient number, since it is larger than the sum of its proper divisors (14123950).

22194722 is a wasteful number, since it uses less digits than its factorization.

22194722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008864.

The product of its digits is 4032, while the sum is 29.

The square root of 22194722 is about 4711.1274659045. The cubic root of 22194722 is about 281.0282009665.

The spelling of 22194722 in words is "twenty-two million, one hundred ninety-four thousand, seven hundred twenty-two".