8470242 has 36 divisors (see below), whose sum is σ = 20177430. Its totient is φ = 2566080.

The previous prime is 8470237. The next prime is 8470247. The reversal of 8470242 is 2420748.

It is an interprime number because it is at equal distance from previous prime (8470237) and next prime (8470247).

It can be written as a sum of positive squares in only one way, i.e., 6456681 + 2013561 = 2541^2 + 1419^2 .

It is not an unprimeable number, because it can be changed into a prime (8470247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 234 + ... + 4122.

Almost surely, 2^8470242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8470242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10088715).

8470242 is an abundant number, since it is smaller than the sum of its proper divisors (11707188).

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

8470242 is a wasteful number, since it uses less digits than its factorization.

8470242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919 (or 3905 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 8470242 is about 2910.3680179661. The cubic root of 8470242 is about 203.8443160517.

The spelling of 8470242 in words is "eight million, four hundred seventy thousand, two hundred forty-two".