22140286 has 8 divisors (see below), whose sum is σ = 37954800. Its totient is φ = 9488688.

The previous prime is 22140277. The next prime is 22140299. The reversal of 22140286 is 68204122.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22140286.

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, 790711 + ... + 790738.

It is an arithmetic number, because the mean of its divisors is an integer number (4744350).

Almost surely, 2^22140286 is an apocalyptic number.

22140286 is a deficient number, since it is larger than the sum of its proper divisors (15814514).

22140286 is a wasteful number, since it uses less digits than its factorization.

22140286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581458.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 22140286 is about 4705.3465334659. The cubic root of 22140286 is about 280.7982577820.

The spelling of 22140286 in words is "twenty-two million, one hundred forty thousand, two hundred eighty-six".