6809142 has 16 divisors (see below), whose sum is σ = 14088240. Its totient is φ = 2191392.

The previous prime is 6809141. The next prime is 6809149. The reversal of 6809142 is 2419086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6809141) 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, 19393 + ... + 19740.

It is an arithmetic number, because the mean of its divisors is an integer number (880515).

Almost surely, 2^6809142 is an apocalyptic number.

6809142 is an abundant number, since it is smaller than the sum of its proper divisors (7279098).

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

6809142 is a wasteful number, since it uses less digits than its factorization.

6809142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39167.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 6809142 is about 2609.4332718044. The cubic root of 6809142 is about 189.5385106557.

The spelling of 6809142 in words is "six million, eight hundred nine thousand, one hundred forty-two".