22889145 has 16 divisors (see below), whose sum is σ = 36729792. Its totient is φ = 12171840.

The previous prime is 22889131. The next prime is 22889147. The reversal of 22889145 is 54198822.

It is not a de Polignac number, because 22889145 - 2⁶ = 22889081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22889147) 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 15 ways as a sum of consecutive naturals, for example, 3550 + ... + 7640.

It is an arithmetic number, because the mean of its divisors is an integer number (2295612).

Almost surely, 2^22889145 is an apocalyptic number.

It is an amenable number.

22889145 is a deficient number, since it is larger than the sum of its proper divisors (13840647).

22889145 is a wasteful number, since it uses less digits than its factorization.

22889145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472.

The product of its digits is 46080, while the sum is 39.

The square root of 22889145 is about 4784.2601308875. The cubic root of 22889145 is about 283.9290679497.

The spelling of 22889145 in words is "twenty-two million, eight hundred eighty-nine thousand, one hundred forty-five".