840286922 has 16 divisors (see below), whose sum is σ = 1323620352. Its totient is φ = 399313200.

The previous prime is 840286901. The next prime is 840286933. The reversal of 840286922 is 229682048.

It is a super-2 number, since 2×840286922² = 1412164222568468168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 840286922.

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, 50954 + ... + 65397.

It is an arithmetic number, because the mean of its divisors is an integer number (82726272).

Almost surely, 2^840286922 is an apocalyptic number.

840286922 is a deficient number, since it is larger than the sum of its proper divisors (483333430).

840286922 is a wasteful number, since it uses less digits than its factorization.

840286922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116533.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 840286922 is about 28987.7029445246. The cubic root of 840286922 is about 943.6462132143.

The spelling of 840286922 in words is "eight hundred forty million, two hundred eighty-six thousand, nine hundred twenty-two".