22298709 has 8 divisors (see below), whose sum is σ = 30756960. Its totient is φ = 14353136.

The previous prime is 22298701. The next prime is 22298789. The reversal of 22298709 is 90789222.

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 22298709 - 2³ = 22298701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22298701) 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, 128067 + ... + 128240.

It is an arithmetic number, because the mean of its divisors is an integer number (3844620).

Almost surely, 2^22298709 is an apocalyptic number.

22298709 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22298709 is a deficient number, since it is larger than the sum of its proper divisors (8458251).

22298709 is a wasteful number, since it uses less digits than its factorization.

22298709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256339.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 22298709 is about 4722.1508870429. The cubic root of 22298709 is about 281.4664096370.

The spelling of 22298709 in words is "twenty-two million, two hundred ninety-eight thousand, seven hundred nine".