6842020 has 12 divisors (see below), whose sum is σ = 14368284. Its totient is φ = 2736800.

The previous prime is 6841993. The next prime is 6842021. The reversal of 6842020 is 202486.

It can be written as a sum of positive squares in 2 ways, for example, as 3247204 + 3594816 = 1802^2 + 1896^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6841982 and 6842000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6842021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171031 + ... + 171070.

It is an arithmetic number, because the mean of its divisors is an integer number (1197357).

Almost surely, 2^6842020 is an apocalyptic number.

It is an amenable number.

6842020 is an abundant number, since it is smaller than the sum of its proper divisors (7526264).

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

6842020 is a wasteful number, since it uses less digits than its factorization.

6842020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342110 (or 342108 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 6842020 is about 2615.7255207686. The cubic root of 6842020 is about 189.8430837388.

It can be divided in two parts, 684 and 2020, that added together give a square (2704 = 52²).

The spelling of 6842020 in words is "six million, eight hundred forty-two thousand, twenty".