8468840 has 32 divisors (see below), whose sum is σ = 19171080. Its totient is φ = 3366912.

The previous prime is 8468821. The next prime is 8468849. The reversal of 8468840 is 488648.

It can be written as a sum of positive squares in 4 ways, for example, as 4866436 + 3602404 = 2206^2 + 1898^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8468794 and 8468803.

It is not an unprimeable number, because it can be changed into a prime (8468849) 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, 7172 + ... + 8268.

Almost surely, 2^8468840 is an apocalyptic number.

It is an amenable number.

8468840 is an abundant number, since it is smaller than the sum of its proper divisors (10702240).

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

8468840 is a wasteful number, since it uses less digits than its factorization.

8468840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 8468840 is about 2910.1271449887. The cubic root of 8468840 is about 203.8330686163.

The spelling of 8468840 in words is "eight million, four hundred sixty-eight thousand, eight hundred forty".