840409010 has 16 divisors (see below), whose sum is σ = 1728841536. Its totient is φ = 288140208.

The previous prime is 840409001. The next prime is 840409013. The reversal of 840409010 is 10904048.

It is not an unprimeable number, because it can be changed into a prime (840409013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6002852 + ... + 6002991.

It is an arithmetic number, because the mean of its divisors is an integer number (108052596).

Almost surely, 2^840409010 is an apocalyptic number.

840409010 is an abundant number, since it is smaller than the sum of its proper divisors (888432526).

840409010 is a wasteful number, since it uses less digits than its factorization.

840409010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12005857.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 840409010 is about 28989.8087265163. The cubic root of 840409010 is about 943.6919128028.

The spelling of 840409010 in words is "eight hundred forty million, four hundred nine thousand, ten".