22042065 has 8 divisors (see below), whose sum is σ = 35267328. Its totient is φ = 11755760.

The previous prime is 22042057. The next prime is 22042079. The reversal of 22042065 is 56024022.

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

It is not a de Polignac number, because 22042065 - 2³ = 22042057 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 7 ways as a sum of consecutive naturals, for example, 734721 + ... + 734750.

It is an arithmetic number, because the mean of its divisors is an integer number (4408416).

Almost surely, 2^22042065 is an apocalyptic number.

It is an amenable number.

22042065 is a deficient number, since it is larger than the sum of its proper divisors (13225263).

22042065 is a wasteful number, since it uses less digits than its factorization.

22042065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469479.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22042065 is about 4694.8977624651. The cubic root of 22042065 is about 280.3824069160.

Adding to 22042065 its product of nonzero digits (960), we get a square (22043025 = 4695²).

Adding to 22042065 its reverse (56024022), we get a palindrome (78066087).

The spelling of 22042065 in words is "twenty-two million, forty-two thousand, sixty-five".