85445842 has 8 divisors (see below), whose sum is σ = 135708156. Its totient is φ = 40209792.

The previous prime is 85445821. The next prime is 85445849. The reversal of 85445842 is 24854458.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81198121 + 4247721 = 9011^2 + 2061^2 .

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 = 85445795 and 85445804.

It is not an unprimeable number, because it can be changed into a prime (85445849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256523 + ... + 1256590.

Almost surely, 2^85445842 is an apocalyptic number.

85445842 is a deficient number, since it is larger than the sum of its proper divisors (50262314).

85445842 is a wasteful number, since it uses less digits than its factorization.

85445842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513132.

The product of its digits is 204800, while the sum is 40.

The square root of 85445842 is about 9243.6920113124. The cubic root of 85445842 is about 440.4503687507.

The spelling of 85445842 in words is "eighty-five million, four hundred forty-five thousand, eight hundred forty-two".