8428242 has 16 divisors (see below), whose sum is σ = 16885440. Its totient is φ = 2804592.

The previous prime is 8428237. The next prime is 8428289. The reversal of 8428242 is 2428248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5184 + ... + 6612.

It is an arithmetic number, because the mean of its divisors is an integer number (1055340).

Almost surely, 2^8428242 is an apocalyptic number.

8428242 is an abundant number, since it is smaller than the sum of its proper divisors (8457198).

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

8428242 is a wasteful number, since it uses less digits than its factorization.

8428242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417.

The product of its digits is 8192, while the sum is 30.

The square root of 8428242 is about 2903.1434687249. The cubic root of 8428242 is about 203.5068345033.

The spelling of 8428242 in words is "eight million, four hundred twenty-eight thousand, two hundred forty-two".