6824740 has 24 divisors (see below), whose sum is σ = 15435000. Its totient is φ = 2519808.

The previous prime is 6824723. The next prime is 6824749. The reversal of 6824740 is 474286.

It can be written as a sum of positive squares in 4 ways, for example, as 484416 + 6340324 = 696^2 + 2518^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6824749) 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, 12865 + ... + 13384.

It is an arithmetic number, because the mean of its divisors is an integer number (643125).

Almost surely, 2^6824740 is an apocalyptic number.

It is an amenable number.

6824740 is an abundant number, since it is smaller than the sum of its proper divisors (8610260).

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

6824740 is a wasteful number, since it uses less digits than its factorization.

6824740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26271 (or 26269 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 6824740 is about 2612.4203337135. The cubic root of 6824740 is about 189.6831283422.

The spelling of 6824740 in words is "six million, eight hundred twenty-four thousand, seven hundred forty".