22042307 has 12 divisors (see below), whose sum is σ = 25882560. Its totient is φ = 18715536.

The previous prime is 22042301. The next prime is 22042331. The reversal of 22042307 is 70324022.

It is a happy number.

It is not a de Polignac number, because 22042307 - 2⁶ = 22042243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22042301) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3278 + ... + 7404.

It is an arithmetic number, because the mean of its divisors is an integer number (2156880).

Almost surely, 2^22042307 is an apocalyptic number.

22042307 is a deficient number, since it is larger than the sum of its proper divisors (3840253).

22042307 is a wasteful number, since it uses less digits than its factorization.

22042307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250 (or 4243 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 22042307 is about 4694.9235350536. The cubic root of 22042307 is about 280.3834330191.

Adding to 22042307 its reverse (70324022), we get a palindrome (92366329).

The spelling of 22042307 in words is "twenty-two million, forty-two thousand, three hundred seven".