22142918 has 8 divisors (see below), whose sum is σ = 37959312. Its totient is φ = 9489816.

The previous prime is 22142881. The next prime is 22142927. The reversal of 22142918 is 81924122.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790805 + ... + 790832.

It is an arithmetic number, because the mean of its divisors is an integer number (4744914).

Almost surely, 2^22142918 is an apocalyptic number.

22142918 is a deficient number, since it is larger than the sum of its proper divisors (15816394).

22142918 is a wasteful number, since it uses less digits than its factorization.

22142918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581646.

The product of its digits is 2304, while the sum is 29.

The square root of 22142918 is about 4705.6262069994. The cubic root of 22142918 is about 280.8093842828.

The spelling of 22142918 in words is "twenty-two million, one hundred forty-two thousand, nine hundred eighteen".