22998445 has 8 divisors (see below), whose sum is σ = 27698040. Its totient is φ = 18332160.

The previous prime is 22998427. The next prime is 22998461. The reversal of 22998445 is 54489922.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2223081 + 20775364 = 1491^2 + 4558^2 .

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

It is not a de Polignac number, because 22998445 - 2¹⁷ = 22867373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6780 + ... + 9589.

It is an arithmetic number, because the mean of its divisors is an integer number (3462255).

Almost surely, 2^22998445 is an apocalyptic number.

It is an amenable number.

22998445 is a deficient number, since it is larger than the sum of its proper divisors (4699595).

22998445 is a wasteful number, since it uses less digits than its factorization.

22998445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16655.

The product of its digits is 207360, while the sum is 43.

The square root of 22998445 is about 4795.6694006155. The cubic root of 22998445 is about 284.3802888361.

The spelling of 22998445 in words is "twenty-two million, nine hundred ninety-eight thousand, four hundred forty-five".