840031852 has 72 divisors (see below), whose sum is σ = 1716019200. Its totient is φ = 358760160.

The previous prime is 840031849. The next prime is 840031853. The reversal of 840031852 is 258130048.

840031852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (840031853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 656149 + ... + 657427.

It is an arithmetic number, because the mean of its divisors is an integer number (23833600).

Almost surely, 2^840031852 is an apocalyptic number.

It is an amenable number.

840031852 is an abundant number, since it is smaller than the sum of its proper divisors (875987348).

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

840031852 is a wasteful number, since it uses less digits than its factorization.

840031852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387 (or 1374 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 840031852 is about 28983.3029863748. The cubic root of 840031852 is about 943.5507219434.

The spelling of 840031852 in words is "eight hundred forty million, thirty-one thousand, eight hundred fifty-two".