6820142 has 16 divisors (see below), whose sum is σ = 11725440. Its totient is φ = 2914488.

The previous prime is 6820141. The next prime is 6820147. The reversal of 6820142 is 2410286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820141) 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, 8273 + ... + 9059.

It is an arithmetic number, because the mean of its divisors is an integer number (732840).

Almost surely, 2^6820142 is an apocalyptic number.

6820142 is a deficient number, since it is larger than the sum of its proper divisors (4905298).

6820142 is a wasteful number, since it uses less digits than its factorization.

6820142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 6820142 is about 2611.5401586037. The cubic root of 6820142 is about 189.6405206646.

The spelling of 6820142 in words is "six million, eight hundred twenty thousand, one hundred forty-two".