22665345 has 16 divisors (see below), whose sum is σ = 36370752. Its totient is φ = 12052800.

The previous prime is 22665323. The next prime is 22665353. The reversal of 22665345 is 54356622.

It is not a de Polignac number, because 22665345 - 2⁷ = 22665217 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3570 + ... + 7620.

It is an arithmetic number, because the mean of its divisors is an integer number (2273172).

Almost surely, 2^22665345 is an apocalyptic number.

It is an amenable number.

22665345 is a deficient number, since it is larger than the sum of its proper divisors (13705407).

22665345 is a wasteful number, since it uses less digits than its factorization.

22665345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4432.

The product of its digits is 43200, while the sum is 33.

The square root of 22665345 is about 4760.8134809085. The cubic root of 22665345 is about 283.0006576002. Note that the first 3 decimals are identical.

The spelling of 22665345 in words is "twenty-two million, six hundred sixty-five thousand, three hundred forty-five".