185442842 has 8 divisors (see below), whose sum is σ = 299561556. Its totient is φ = 85588992.

The previous prime is 185442839. The next prime is 185442893. The reversal of 185442842 is 248244581.

It can be written as a sum of positive squares in 2 ways, for example, as 175324081 + 10118761 = 13241^2 + 3181^2 .

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 = 185442796 and 185442805.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566183 + ... + 3566234.

Almost surely, 2^185442842 is an apocalyptic number.

185442842 is a deficient number, since it is larger than the sum of its proper divisors (114118714).

185442842 is a wasteful number, since it uses less digits than its factorization.

185442842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132432.

The product of its digits is 81920, while the sum is 38.

The square root of 185442842 is about 13617.7399740192. The cubic root of 185442842 is about 570.2562118919.

The spelling of 185442842 in words is "one hundred eighty-five million, four hundred forty-two thousand, eight hundred forty-two".