840032840084 has 24 divisors (see below), whose sum is σ = 1513235620008. Its totient is φ = 407843205120.

The previous prime is 840032840083. The next prime is 840032840099. The reversal of 840032840084 is 480048230048.

It can be written as a sum of positive squares in 4 ways, for example, as 184532103184 + 655500736900 = 429572^2 + 809630^2 .

It is a super-2 number, since 2×840032840084² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840032840083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20404277 + ... + 20445404.

It is an arithmetic number, because the mean of its divisors is an integer number (63051484167).

Almost surely, 2^840032840084 is an apocalyptic number.

It is an amenable number.

840032840084 is a deficient number, since it is larger than the sum of its proper divisors (673202779924).

840032840084 is a wasteful number, since it uses less digits than its factorization.

840032840084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40849835 (or 40849833 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 41.

The spelling of 840032840084 in words is "eight hundred forty billion, thirty-two million, eight hundred forty thousand, eighty-four".