840863214 has 32 divisors (see below), whose sum is σ = 1978503840. Its totient is φ = 263799936.

The previous prime is 840863209. The next prime is 840863227. The reversal of 840863214 is 412368048.

840863214 is a `hidden beast` number, since 8 + 4 + 0 + 8 + 632 + 14 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457069 + ... + 458904.

It is an arithmetic number, because the mean of its divisors is an integer number (61828245).

Almost surely, 2^840863214 is an apocalyptic number.

840863214 is an abundant number, since it is smaller than the sum of its proper divisors (1137640626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

840863214 is a wasteful number, since it uses less digits than its factorization.

840863214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916001 (or 915995 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 840863214 is about 28997.6415247861. The cubic root of 840863214 is about 943.8618901358.

The spelling of 840863214 in words is "eight hundred forty million, eight hundred sixty-three thousand, two hundred fourteen".