22718042 has 8 divisors (see below), whose sum is σ = 34109856. Its totient is φ = 11348092.

The previous prime is 22718041. The next prime is 22718117. The reversal of 22718042 is 24081722.

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

It is a super-2 number, since 2×22718042² = 1032218864627528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22718041) 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 3 ways as a sum of consecutive naturals, for example, 2558 + ... + 7209.

It is an arithmetic number, because the mean of its divisors is an integer number (4263732).

Almost surely, 2^22718042 is an apocalyptic number.

22718042 is a deficient number, since it is larger than the sum of its proper divisors (11391814).

22718042 is a wasteful number, since it uses less digits than its factorization.

22718042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10932.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 22718042 is about 4766.3447210625. The cubic root of 22718042 is about 283.2198136546.

Adding to 22718042 its reverse (24081722), we get a palindrome (46799764).

The spelling of 22718042 in words is "twenty-two million, seven hundred eighteen thousand, forty-two".