840022286 has 16 divisors (see below), whose sum is σ = 1290353328. Its totient is φ = 409920000.

The previous prime is 840022279. The next prime is 840022291. The reversal of 840022286 is 682220048.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 134636 + ... + 140736.

It is an arithmetic number, because the mean of its divisors is an integer number (80647083).

Almost surely, 2^840022286 is an apocalyptic number.

840022286 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

840022286 is a deficient number, since it is larger than the sum of its proper divisors (450331042).

840022286 is a wasteful number, since it uses less digits than its factorization.

840022286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7747.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 840022286 is about 28983.1379598552. The cubic root of 840022286 is about 943.5471403171.

The spelling of 840022286 in words is "eight hundred forty million, twenty-two thousand, two hundred eighty-six".