840183768 has 48 divisors (see below), whose sum is σ = 2302929720. Its totient is φ = 276685056.

The previous prime is 840183761. The next prime is 840183769. The reversal of 840183768 is 867381048.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840183761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64321 + ... + 76272.

Almost surely, 2^840183768 is an apocalyptic number.

It is an amenable number.

840183768 is an abundant number, since it is smaller than the sum of its proper divisors (1462745952).

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

840183768 is a wasteful number, since it uses less digits than its factorization.

840183768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140688 (or 140681 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 840183768 is about 28985.9236181979. The cubic root of 840183768 is about 943.6075974897.

The spelling of 840183768 in words is "eight hundred forty million, one hundred eighty-three thousand, seven hundred sixty-eight".