840844892 has 12 divisors (see below), whose sum is σ = 1507368576. Its totient is φ = 410168160.

The previous prime is 840844891. The next prime is 840844957. The reversal of 840844892 is 298448048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840844891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2563388 + ... + 2563715.

It is an arithmetic number, because the mean of its divisors is an integer number (125614048).

Almost surely, 2^840844892 is an apocalyptic number.

840844892 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

840844892 is a deficient number, since it is larger than the sum of its proper divisors (666523684).

840844892 is a wasteful number, since it uses less digits than its factorization.

840844892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5127148 (or 5127146 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 47.

The square root of 840844892 is about 28997.3256008205. The cubic root of 840844892 is about 943.8550346557.

The spelling of 840844892 in words is "eight hundred forty million, eight hundred forty-four thousand, eight hundred ninety-two".