22817242 has 48 divisors (see below), whose sum is σ = 42550272. Its totient is φ = 9129120.

The previous prime is 22817239. The next prime is 22817243. The reversal of 22817242 is 24271822.

It is a self number, because there is not a number n which added to its sum of digits gives 22817242.

It is not an unprimeable number, because it can be changed into a prime (22817243) 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 23 ways as a sum of consecutive naturals, for example, 119367 + ... + 119557.

It is an arithmetic number, because the mean of its divisors is an integer number (886464).

Almost surely, 2^22817242 is an apocalyptic number.

22817242 is a deficient number, since it is larger than the sum of its proper divisors (19733030).

22817242 is a wasteful number, since it uses less digits than its factorization.

22817242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 276 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 22817242 is about 4776.7396830893. The cubic root of 22817242 is about 283.6314484672.

The spelling of 22817242 in words is "twenty-two million, eight hundred seventeen thousand, two hundred forty-two".