6804512440 has 96 divisors (see below), whose sum is σ = 17409168000. Its totient is φ = 2388995840.

The previous prime is 6804512423. The next prime is 6804512443. The reversal of 6804512440 is 442154086.

It is a super-2 number, since 2×6804512440² = 92602779092229507200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6804512396 and 6804512405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6804512443) 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 23 ways as a sum of consecutive naturals, for example, 116121 + ... + 164599.

It is an arithmetic number, because the mean of its divisors is an integer number (181345500).

Almost surely, 2^6804512440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6804512440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8704584000).

6804512440 is an abundant number, since it is smaller than the sum of its proper divisors (10604655560).

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

6804512440 is a wasteful number, since it uses less digits than its factorization.

6804512440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48541 (or 48526 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 6804512440 is about 82489.4686611570. The cubic root of 6804512440 is about 1894.9554494624.

The spelling of 6804512440 in words is "six billion, eight hundred four million, five hundred twelve thousand, four hundred forty".