8408842 has 16 divisors (see below), whose sum is σ = 13952232. Its totient is φ = 3775680.

The previous prime is 8408837. The next prime is 8408867. The reversal of 8408842 is 2488048.

It can be written as a sum of positive squares in 4 ways, for example, as 6245001 + 2163841 = 2499^2 + 1471^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8408798 and 8408807.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3409 + ... + 5332.

Almost surely, 2^8408842 is an apocalyptic number.

8408842 is a deficient number, since it is larger than the sum of its proper divisors (5543390).

8408842 is a wasteful number, since it uses less digits than its factorization.

8408842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8793.

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 8408842 is about 2899.8003379543. The cubic root of 8408842 is about 203.3505715625.

The spelling of 8408842 in words is "eight million, four hundred eight thousand, eight hundred forty-two".