22198305 has 8 divisors (see below), whose sum is σ = 35517312. Its totient is φ = 11839088.

The previous prime is 22198303. The next prime is 22198307. The reversal of 22198305 is 50389122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22198303) and next prime (22198307).

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

It is a cyclic number.

It is not a de Polignac number, because 22198305 - 2¹ = 22198303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22198303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739929 + ... + 739958.

It is an arithmetic number, because the mean of its divisors is an integer number (4439664).

Almost surely, 2^22198305 is an apocalyptic number.

It is an amenable number.

22198305 is a deficient number, since it is larger than the sum of its proper divisors (13319007).

22198305 is a wasteful number, since it uses less digits than its factorization.

22198305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479895.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 22198305 is about 4711.5077204649. The cubic root of 22198305 is about 281.0433227278.

The spelling of 22198305 in words is "twenty-two million, one hundred ninety-eight thousand, three hundred five".