22194730 has 16 divisors (see below), whose sum is σ = 40005000. Its totient is φ = 8865792.

The previous prime is 22194727. The next prime is 22194737. The reversal of 22194730 is 3749122.

It can be written as a sum of positive squares in 4 ways, for example, as 16982641 + 5212089 = 4121^2 + 2283^2 .

It is not an unprimeable number, because it can be changed into a prime (22194737) 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 7 ways as a sum of consecutive naturals, for example, 11602 + ... + 13378.

Almost surely, 2^22194730 is an apocalyptic number.

22194730 is a deficient number, since it is larger than the sum of its proper divisors (17810270).

22194730 is a wasteful number, since it uses less digits than its factorization.

22194730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 22194730 is about 4711.1283149581. The cubic root of 22194730 is about 281.0282347317.

The spelling of 22194730 in words is "twenty-two million, one hundred ninety-four thousand, seven hundred thirty".