22604145 has 8 divisors (see below), whose sum is σ = 36166656. Its totient is φ = 12055536.

The previous prime is 22604143. The next prime is 22604149. The reversal of 22604145 is 54140622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22604145 - 2¹ = 22604143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22604143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753457 + ... + 753486.

It is an arithmetic number, because the mean of its divisors is an integer number (4520832).

Almost surely, 2^22604145 is an apocalyptic number.

It is an amenable number.

22604145 is a deficient number, since it is larger than the sum of its proper divisors (13562511).

22604145 is a wasteful number, since it uses less digits than its factorization.

22604145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506951.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 22604145 is about 4754.3816632660. The cubic root of 22604145 is about 282.7457125544.

Adding to 22604145 its reverse (54140622), we get a palindrome (76744767).

The spelling of 22604145 in words is "twenty-two million, six hundred four thousand, one hundred forty-five".