8424185842 has 8 divisors (see below), whose sum is σ = 12663690732. Its totient is φ = 4202955600.

The previous prime is 8424185837. The next prime is 8424185879. The reversal of 8424185842 is 2485814248.

It can be written as a sum of positive squares in 2 ways, for example, as 7903387801 + 520798041 = 88901^2 + 22821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8424185792 and 8424185801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4567509 + ... + 4569352.

Almost surely, 2^8424185842 is an apocalyptic number.

8424185842 is a deficient number, since it is larger than the sum of its proper divisors (4239504890).

8424185842 is a wasteful number, since it uses less digits than its factorization.

8424185842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9137324.

The product of its digits is 655360, while the sum is 46.

The square root of 8424185842 is about 91783.3636450528. The cubic root of 8424185842 is about 2034.7418284125.

The spelling of 8424185842 in words is "eight billion, four hundred twenty-four million, one hundred eighty-five thousand, eight hundred forty-two".