85909442 has 8 divisors (see below), whose sum is σ = 131861136. Its totient is φ = 41955732.

The previous prime is 85909441. The next prime is 85909451. The reversal of 85909442 is 24490958.

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

It is a self number, because there is not a number n which added to its sum of digits gives 85909442.

It is not an unprimeable number, because it can be changed into a prime (85909441) 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, 499388 + ... + 499559.

It is an arithmetic number, because the mean of its divisors is an integer number (16482642).

Almost surely, 2^85909442 is an apocalyptic number.

85909442 is a deficient number, since it is larger than the sum of its proper divisors (45951694).

85909442 is a wasteful number, since it uses less digits than its factorization.

85909442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998992.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 85909442 is about 9268.7346493467. The cubic root of 85909442 is about 441.2455102572.

The spelling of 85909442 in words is "eighty-five million, nine hundred nine thousand, four hundred forty-two".