8204840 has 32 divisors (see below), whose sum is σ = 21098880. Its totient is φ = 2812992.

The previous prime is 8204809. The next prime is 8204843. The reversal of 8204840 is 484028.

It is not an unprimeable number, because it can be changed into a prime (8204843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14372 + ... + 14931.

It is an arithmetic number, because the mean of its divisors is an integer number (659340).

Almost surely, 2^8204840 is an apocalyptic number.

It is an amenable number.

8204840 is an abundant number, since it is smaller than the sum of its proper divisors (12894040).

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

8204840 is a wasteful number, since it uses less digits than its factorization.

8204840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29321 (or 29317 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 8204840 is about 2864.4091886461. The cubic root of 8204840 is about 201.6926345299.

Adding to 8204840 its reverse (484028), we get a palindrome (8688868).

The spelling of 8204840 in words is "eight million, two hundred four thousand, eight hundred forty".