8209242 has 32 divisors (see below), whose sum is σ = 18523200. Its totient is φ = 2694384.

The previous prime is 8209241. The next prime is 8209261. The reversal of 8209242 is 2429028.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8209241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2484 + ... + 4752.

It is an arithmetic number, because the mean of its divisors is an integer number (578850).

Almost surely, 2^8209242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8209242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9261600).

8209242 is an abundant number, since it is smaller than the sum of its proper divisors (10313958).

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

8209242 is a wasteful number, since it uses less digits than its factorization.

8209242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8209242 is about 2865.1774814137. The cubic root of 8209242 is about 201.7286982941.

The spelling of 8209242 in words is "eight million, two hundred nine thousand, two hundred forty-two".