8122842 has 160 divisors (see below), whose sum is σ = 24393600. Its totient is φ = 1959552.

The previous prime is 8122819. The next prime is 8122843. The reversal of 8122842 is 2482218.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8122843) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 280084 + ... + 280112.

It is an arithmetic number, because the mean of its divisors is an integer number (152460).

Almost surely, 2^8122842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8122842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12196800).

8122842 is an abundant number, since it is smaller than the sum of its proper divisors (16270758).

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

8122842 is a wasteful number, since it uses less digits than its factorization.

8122842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 73 counting only the distinct ones).

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

The square root of 8122842 is about 2850.0599993684. The cubic root of 8122842 is about 201.0184879408.

The spelling of 8122842 in words is "eight million, one hundred twenty-two thousand, eight hundred forty-two".