6858340 has 24 divisors (see below), whose sum is σ = 14568120. Its totient is φ = 2711808.

The previous prime is 6858331. The next prime is 6858349. The reversal of 6858340 is 438586.

It is an interprime number because it is at equal distance from previous prime (6858331) and next prime (6858349).

It can be written as a sum of positive squares in 4 ways, for example, as 1577536 + 5280804 = 1256^2 + 2298^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6858296 and 6858305.

It is not an unprimeable number, because it can be changed into a prime (6858349) 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, 147 + ... + 3706.

It is an arithmetic number, because the mean of its divisors is an integer number (607005).

Almost surely, 2^6858340 is an apocalyptic number.

It is an amenable number.

6858340 is an abundant number, since it is smaller than the sum of its proper divisors (7709780).

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

6858340 is a wasteful number, since it uses less digits than its factorization.

6858340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951 (or 3949 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 6858340 is about 2618.8432560961. The cubic root of 6858340 is about 189.9939056217.

It can be divided in two parts, 6858 and 340, that multiplied together give a triangular number (2331720 = T₂₁₅₉).

The spelling of 6858340 in words is "six million, eight hundred fifty-eight thousand, three hundred forty".