6728442 has 16 divisors (see below), whose sum is σ = 15379392. Its totient is φ = 1922400.

The previous prime is 6728441. The next prime is 6728467. The reversal of 6728442 is 2448276.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6728441) 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, 80059 + ... + 80142.

It is an arithmetic number, because the mean of its divisors is an integer number (961212).

Almost surely, 2^6728442 is an apocalyptic number.

6728442 is an abundant number, since it is smaller than the sum of its proper divisors (8650950).

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

6728442 is a wasteful number, since it uses less digits than its factorization.

6728442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160213.

The product of its digits is 21504, while the sum is 33.

The square root of 6728442 is about 2593.9240544010. The cubic root of 6728442 is about 188.7867475197.

The spelling of 6728442 in words is "six million, seven hundred twenty-eight thousand, four hundred forty-two".