6885040 has 40 divisors (see below), whose sum is σ = 16204320. Its totient is φ = 2720256.

The previous prime is 6885029. The next prime is 6885041. The reversal of 6885040 is 405886.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 6884993 and 6885011.

It is not an unprimeable number, because it can be changed into a prime (6885041) 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, 6637 + ... + 7603.

It is an arithmetic number, because the mean of its divisors is an integer number (405108).

Almost surely, 2^6885040 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 6885040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8102160).

6885040 is an abundant number, since it is smaller than the sum of its proper divisors (9319280).

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

6885040 is a wasteful number, since it uses less digits than its factorization.

6885040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1063 counting only the distinct ones).

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

The square root of 6885040 is about 2623.9359748287. The cubic root of 6885040 is about 190.2401395748.

The spelling of 6885040 in words is "six million, eight hundred eighty-five thousand, forty".