22909345 has 16 divisors (see below), whose sum is σ = 29088000. Its totient is φ = 17273088.

The previous prime is 22909339. The next prime is 22909349. The reversal of 22909345 is 54390922.

It is a cyclic number.

It is not a de Polignac number, because 22909345 - 2²¹ = 20812193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22909345.

It is not an unprimeable number, because it can be changed into a prime (22909349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22201 + ... + 23209.

It is an arithmetic number, because the mean of its divisors is an integer number (1818000).

Almost surely, 2^22909345 is an apocalyptic number.

It is an amenable number.

22909345 is a deficient number, since it is larger than the sum of its proper divisors (6178655).

22909345 is a wasteful number, since it uses less digits than its factorization.

22909345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 22909345 is about 4786.3707545488. The cubic root of 22909345 is about 284.0125672214.

The spelling of 22909345 in words is "twenty-two million, nine hundred nine thousand, three hundred forty-five".