840934100 has 36 divisors (see below), whose sum is σ = 1836944928. Its totient is φ = 334140000.

The previous prime is 840934099. The next prime is 840934103. The reversal of 840934100 is 1439048.

840934100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840934103) 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, 12746 + ... + 42945.

It is an arithmetic number, because the mean of its divisors is an integer number (51026248).

Almost surely, 2^840934100 is an apocalyptic number.

It is an amenable number.

840934100 is an abundant number, since it is smaller than the sum of its proper divisors (996010828).

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

840934100 is a wasteful number, since it uses less digits than its factorization.

840934100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55856 (or 55849 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 840934100 is about 28998.8637708445. The cubic root of 840934100 is about 943.8884123702. Note that the first 3 decimals are identical.

The spelling of 840934100 in words is "eight hundred forty million, nine hundred thirty-four thousand, one hundred".