22842939 has 16 divisors (see below), whose sum is σ = 35932160. Its totient is φ = 12631680.

The previous prime is 22842899. The next prime is 22842977. The reversal of 22842939 is 93924822.

It is a happy number.

It is not a de Polignac number, because 22842939 - 2¹¹ = 22840891 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22842897 and 22842906.

It is not an unprimeable number, because it can be changed into a prime (22842539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16894 + ... + 18195.

It is an arithmetic number, because the mean of its divisors is an integer number (2245760).

Almost surely, 2^22842939 is an apocalyptic number.

22842939 is a deficient number, since it is larger than the sum of its proper divisors (13089221).

22842939 is a wasteful number, since it uses less digits than its factorization.

22842939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35130.

The product of its digits is 62208, while the sum is 39.

The square root of 22842939 is about 4779.4287315536. The cubic root of 22842939 is about 283.7378846865.

The spelling of 22842939 in words is "twenty-two million, eight hundred forty-two thousand, nine hundred thirty-nine".