22194394 has 8 divisors (see below), whose sum is σ = 35043840. Its totient is φ = 10513116.

The previous prime is 22194373. The next prime is 22194427. The reversal of 22194394 is 49349122.

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

It is a super-2 number, since 2×22194394² = 985182250054472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291994 + ... + 292069.

It is an arithmetic number, because the mean of its divisors is an integer number (4380480).

Almost surely, 2^22194394 is an apocalyptic number.

22194394 is a deficient number, since it is larger than the sum of its proper divisors (12849446).

22194394 is a wasteful number, since it uses less digits than its factorization.

22194394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584084.

The product of its digits is 15552, while the sum is 34.

The square root of 22194394 is about 4711.0926545760. The cubic root of 22194394 is about 281.0268165877.

The spelling of 22194394 in words is "twenty-two million, one hundred ninety-four thousand, three hundred ninety-four".