6868428 has 36 divisors (see below), whose sum is σ = 18644472. Its totient is φ = 1962240.

The previous prime is 6868427. The next prime is 6868457. The reversal of 6868428 is 8248686.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 6868428.

It is not an unprimeable number, because it can be changed into a prime (6868423) 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, 5253 + ... + 6428.

It is an arithmetic number, because the mean of its divisors is an integer number (517902).

Almost surely, 2^6868428 is an apocalyptic number.

It is an amenable number.

6868428 is an abundant number, since it is smaller than the sum of its proper divisors (11776044).

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

6868428 is a wasteful number, since it uses less digits than its factorization.

6868428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11702 (or 11693 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 6868428 is about 2620.7685895554. The cubic root of 6868428 is about 190.0870146220.

The spelling of 6868428 in words is "six million, eight hundred sixty-eight thousand, four hundred twenty-eight".