22988709 has 24 divisors (see below), whose sum is σ = 35544600. Its totient is φ = 14266368.

The previous prime is 22988699. The next prime is 22988717. The reversal of 22988709 is 90788922.

It can be written as a sum of positive squares in 4 ways, for example, as 4040100 + 18948609 = 2010^2 + 4353^2 .

It is not a de Polignac number, because 22988709 - 2⁹ = 22988197 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 (22981709) 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, 14067 + ... + 15615.

It is an arithmetic number, because the mean of its divisors is an integer number (1481025).

Almost surely, 2^22988709 is an apocalyptic number.

It is an amenable number.

22988709 is a deficient number, since it is larger than the sum of its proper divisors (12555891).

22988709 is a wasteful number, since it uses less digits than its factorization.

22988709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 22988709 is about 4794.6542106809. The cubic root of 22988709 is about 284.3401539882.

The spelling of 22988709 in words is "twenty-two million, nine hundred eighty-eight thousand, seven hundred nine".