8185442 has 8 divisors (see below), whose sum is σ = 12405036. Its totient is φ = 4050432.

The previous prime is 8185433. The next prime is 8185451. The reversal of 8185442 is 2445818.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8185433) and next prime (8185451).

It can be written as a sum of positive squares in 2 ways, for example, as 8185321 + 121 = 2861^2 + 11^2 .

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 = 8185399 and 8185408.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20903 + ... + 21290.

Almost surely, 2^8185442 is an apocalyptic number.

8185442 is a deficient number, since it is larger than the sum of its proper divisors (4219594).

8185442 is a wasteful number, since it uses less digits than its factorization.

8185442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42292.

The product of its digits is 10240, while the sum is 32.

The square root of 8185442 is about 2861.0211463741. The cubic root of 8185442 is about 201.5335608995.

The spelling of 8185442 in words is "eight million, one hundred eighty-five thousand, four hundred forty-two".