85240170 has 48 divisors (see below), whose sum is σ = 224314272. Its totient is φ = 22454880.

The previous prime is 85240153. The next prime is 85240171. The reversal of 85240170 is 7104258.

It is not an unprimeable number, because it can be changed into a prime (85240171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1765 + ... + 13175.

It is an arithmetic number, because the mean of its divisors is an integer number (4673214).

Almost surely, 2^85240170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85240170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112157136).

85240170 is an abundant number, since it is smaller than the sum of its proper divisors (139074102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85240170 is a wasteful number, since it uses less digits than its factorization.

85240170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11507 (or 11504 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 85240170 is about 9232.5603166186. The cubic root of 85240170 is about 440.0966901832.

The spelling of 85240170 in words is "eighty-five million, two hundred forty thousand, one hundred seventy".