22317345 has 24 divisors (see below), whose sum is σ = 40960296. Its totient is φ = 11202048.

The previous prime is 22317331. The next prime is 22317349. The reversal of 22317345 is 54371322.

22317345 is a `hidden beast` number, since 2 + 2 + 317 + 345 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1083681 + 21233664 = 1041^2 + 4608^2 .

It is not a de Polignac number, because 22317345 - 2⁵ = 22317313 is a prime.

It is a super-3 number, since 3×22317345³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22317349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13822 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (1706679).

Almost surely, 2^22317345 is an apocalyptic number.

It is an amenable number.

22317345 is a deficient number, since it is larger than the sum of its proper divisors (18642951).

22317345 is a wasteful number, since it uses less digits than its factorization.

22317345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29201 (or 29198 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 22317345 is about 4724.1237282696. The cubic root of 22317345 is about 281.5447990394.

Adding to 22317345 its reverse (54371322), we get a palindrome (76688667).

The spelling of 22317345 in words is "twenty-two million, three hundred seventeen thousand, three hundred forty-five".