6884040 has 32 divisors (see below), whose sum is σ = 20652480. Its totient is φ = 1835712.

The previous prime is 6884039. The next prime is 6884041. The reversal of 6884040 is 404886.

It is an interprime number because it is at equal distance from previous prime (6884039) and next prime (6884041).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6883989 and 6884007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6884041) 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, 28564 + ... + 28803.

It is an arithmetic number, because the mean of its divisors is an integer number (645390).

Almost surely, 2^6884040 is an apocalyptic number.

6884040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6884040 is an abundant number, since it is smaller than the sum of its proper divisors (13768440).

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

6884040 is a wasteful number, since it uses less digits than its factorization.

6884040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57381 (or 57377 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 6884040 is about 2623.7454144791. The cubic root of 6884040 is about 190.2309288149.

The spelling of 6884040 in words is "six million, eight hundred eighty-four thousand, forty".