8464842 has 48 divisors (see below), whose sum is σ = 19712160. Its totient is φ = 2617056.

The previous prime is 8464837. The next prime is 8464867. The reversal of 8464842 is 2484648.

8464842 is a `hidden beast` number, since 8 + 4 + 648 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 8464797 and 8464806.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17893 + ... + 18359.

It is an arithmetic number, because the mean of its divisors is an integer number (410670).

Almost surely, 2^8464842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8464842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9856080).

8464842 is an abundant number, since it is smaller than the sum of its proper divisors (11247318).

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

8464842 is a wasteful number, since it uses less digits than its factorization.

8464842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 544 counting only the distinct ones).

The product of its digits is 49152, while the sum is 36.

The square root of 8464842 is about 2909.4401523317. The cubic root of 8464842 is about 203.8009881551.

The spelling of 8464842 in words is "eight million, four hundred sixty-four thousand, eight hundred forty-two".