6806040 has 64 divisors (see below), whose sum is σ = 20908800. Its totient is φ = 1771392.

The previous prime is 6806029. The next prime is 6806053. The reversal of 6806040 is 406086.

6806040 = T₅₄₁ + T₅₄₂ + ... + T₅₈₃.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 6806040.

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, 4501 + ... + 5819.

It is an arithmetic number, because the mean of its divisors is an integer number (326700).

Almost surely, 2^6806040 is an apocalyptic number.

6806040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6806040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10454400).

6806040 is an abundant number, since it is smaller than the sum of its proper divisors (14102760).

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

6806040 is a wasteful number, since it uses less digits than its factorization.

6806040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 6806040 is about 2608.8388221582. The cubic root of 6806040 is about 189.5097239762.

The spelling of 6806040 in words is "six million, eight hundred six thousand, forty".