6860840 has 64 divisors (see below), whose sum is σ = 17884800. Its totient is φ = 2320128.

The previous prime is 6860839. The next prime is 6860851. The reversal of 6860840 is 480686.

It is a super-2 number, since 2×6860840² = 94142251011200, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 6860797 and 6860806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29846 + ... + 30074.

It is an arithmetic number, because the mean of its divisors is an integer number (279450).

Almost surely, 2^6860840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6860840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8942400).

6860840 is an abundant number, since it is smaller than the sum of its proper divisors (11023960).

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

6860840 is a wasteful number, since it uses less digits than its factorization.

6860840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 6860840 is about 2619.3205225783. The cubic root of 6860840 is about 190.0169883240.

The spelling of 6860840 in words is "six million, eight hundred sixty thousand, eight hundred forty".