6868224 has 108 divisors (see below), whose sum is σ = 21682752. Its totient is φ = 2073600.

The previous prime is 6868207. The next prime is 6868229. The reversal of 6868224 is 4228686.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁷ + 8³ + 6⁷ + 8⁷ + 2²¹ + 2²¹ + 4⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25209 + ... + 25479.

Almost surely, 2^6868224 is an apocalyptic number.

6868224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6868224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10841376).

6868224 is an abundant number, since it is smaller than the sum of its proper divisors (14814528).

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

6868224 is a wasteful number, since it uses less digits than its factorization.

6868224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 287 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 6868224 is about 2620.7296693860. The cubic root of 6868224 is about 190.0851326710.

The spelling of 6868224 in words is "six million, eight hundred sixty-eight thousand, two hundred twenty-four".