8425242 has 64 divisors (see below), whose sum is σ = 22118400. Its totient is φ = 2326320.

The previous prime is 8425237. The next prime is 8425243. The reversal of 8425242 is 2425248.

It is a happy number.

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 (8425243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11359 + ... + 12077.

It is an arithmetic number, because the mean of its divisors is an integer number (345600).

Almost surely, 2^8425242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8425242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11059200).

8425242 is an abundant number, since it is smaller than the sum of its proper divisors (13693158).

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

8425242 is a wasteful number, since it uses less digits than its factorization.

8425242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 762 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 8425242 is about 2902.6267414189. The cubic root of 8425242 is about 203.4826858155.

It can be divided in two parts, 842 and 5242, that added together give a square (6084 = 78²).

The spelling of 8425242 in words is "eight million, four hundred twenty-five thousand, two hundred forty-two".