22643313 has 32 divisors (see below), whose sum is σ = 38126592. Its totient is φ = 11611200.

The previous prime is 22643311. The next prime is 22643317. The reversal of 22643313 is 31334622.

It is not a de Polignac number, because 22643313 - 2¹ = 22643311 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22643311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18583 + ... + 19763.

It is an arithmetic number, because the mean of its divisors is an integer number (1191456).

Almost surely, 2^22643313 is an apocalyptic number.

It is an amenable number.

22643313 is a deficient number, since it is larger than the sum of its proper divisors (15483279).

22643313 is a wasteful number, since it uses less digits than its factorization.

22643313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285.

The product of its digits is 2592, while the sum is 24.

The square root of 22643313 is about 4758.4990280550. The cubic root of 22643313 is about 282.9089303126.

Adding to 22643313 its reverse (31334622), we get a palindrome (53977935).

The spelling of 22643313 in words is "twenty-two million, six hundred forty-three thousand, three hundred thirteen".