6809280 has 112 divisors (see below), whose sum is σ = 22274784. Its totient is φ = 1761280.

The previous prime is 6809279. The next prime is 6809323. The reversal of 6809280 is 829086.

6809280 is digitally balanced in base 4 and base 5, because in such bases it contains all the possibile digits an equal number of times.

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, 39274 + ... + 39446.

It is an arithmetic number, because the mean of its divisors is an integer number (198882).

Almost surely, 2^6809280 is an apocalyptic number.

6809280 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 6809280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11137392).

6809280 is an abundant number, since it is smaller than the sum of its proper divisors (15465504).

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

6809280 is a wasteful number, since it uses less digits than its factorization.

6809280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 6809280 is about 2609.4597141937. The cubic root of 6809280 is about 189.5397910978.

The spelling of 6809280 in words is "six million, eight hundred nine thousand, two hundred eighty".