6888444 has 24 divisors (see below), whose sum is σ = 16144128. Its totient is φ = 2286000.

The previous prime is 6888439. The next prime is 6888467. The reversal of 6888444 is 4448886.

It is a super-2 number, since 2×6888444² = 94901321482272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6888396 and 6888405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1869 + ... + 4155.

It is an arithmetic number, because the mean of its divisors is an integer number (672672).

Almost surely, 2^6888444 is an apocalyptic number.

It is an amenable number.

6888444 is an abundant number, since it is smaller than the sum of its proper divisors (9255684).

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

6888444 is a wasteful number, since it uses less digits than its factorization.

6888444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545 (or 2543 counting only the distinct ones).

The product of its digits is 196608, while the sum is 42.

The square root of 6888444 is about 2624.5845385508. The cubic root of 6888444 is about 190.2714863180.

The spelling of 6888444 in words is "six million, eight hundred eighty-eight thousand, four hundred forty-four".