8412840 has 48 divisors (see below), whose sum is σ = 27342900. Its totient is φ = 2243328.

The previous prime is 8412823. The next prime is 8412851. The reversal of 8412840 is 482148.

It can be written as a sum of positive squares in 2 ways, for example, as 7717284 + 695556 = 2778^2 + 834^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11325 + ... + 12044.

Almost surely, 2^8412840 is an apocalyptic number.

It is an amenable number.

8412840 is an abundant number, since it is smaller than the sum of its proper divisors (18930060).

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

8412840 is a wasteful number, since it uses less digits than its factorization.

8412840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23386 (or 23379 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 8412840 is about 2900.4896138411. The cubic root of 8412840 is about 203.3827942622.

Adding to 8412840 its reverse (482148), we get a palindrome (8894988).

The spelling of 8412840 in words is "eight million, four hundred twelve thousand, eight hundred forty".