85305642 has 16 divisors (see below), whose sum is σ = 170707392. Its totient is φ = 28419200.

The previous prime is 85305637. The next prime is 85305659. The reversal of 85305642 is 24650358.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13267 + ... + 18617.

It is an arithmetic number, because the mean of its divisors is an integer number (10669212).

Almost surely, 2^85305642 is an apocalyptic number.

85305642 is an abundant number, since it is smaller than the sum of its proper divisors (85401750).

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

85305642 is a wasteful number, since it uses less digits than its factorization.

85305642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 85305642 is about 9236.1053480350. The cubic root of 85305642 is about 440.2093390920.

The spelling of 85305642 in words is "eighty-five million, three hundred five thousand, six hundred forty-two".