23022905 has 8 divisors (see below), whose sum is σ = 27653832. Its totient is φ = 18400768.

The previous prime is 23022893. The next prime is 23022911. The reversal of 23022905 is 50922032.

It can be written as a sum of positive squares in 4 ways, for example, as 3024121 + 19998784 = 1739^2 + 4472^2 .

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 23022905 - 2⁶ = 23022841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7337 + ... + 9993.

It is an arithmetic number, because the mean of its divisors is an integer number (3456729).

Almost surely, 2^23022905 is an apocalyptic number.

It is an amenable number.

23022905 is a deficient number, since it is larger than the sum of its proper divisors (4630927).

23022905 is a wasteful number, since it uses less digits than its factorization.

23022905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 23022905 is about 4798.2189403986. The cubic root of 23022905 is about 284.4810706835.

Adding to 23022905 its reverse (50922032), we get a palindrome (73944937).

The spelling of 23022905 in words is "twenty-three million, twenty-two thousand, nine hundred five".