22718942 has 4 divisors (see below), whose sum is σ = 34078416. Its totient is φ = 11359470.

The previous prime is 22718929. The next prime is 22718959. The reversal of 22718942 is 24981722.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5679734 + ... + 5679737.

It is an arithmetic number, because the mean of its divisors is an integer number (8519604).

Almost surely, 2^22718942 is an apocalyptic number.

22718942 is a deficient number, since it is larger than the sum of its proper divisors (11359474).

22718942 is a wasteful number, since it uses less digits than its factorization.

22718942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11359473.

The product of its digits is 16128, while the sum is 35.

The square root of 22718942 is about 4766.4391320985. The cubic root of 22718942 is about 283.2235536258.

The spelling of 22718942 in words is "twenty-two million, seven hundred eighteen thousand, nine hundred forty-two".