85321240 has 16 divisors (see below), whose sum is σ = 191972880. Its totient is φ = 34128480.

The previous prime is 85321213. The next prime is 85321253. The reversal of 85321240 is 4212358.

It is a congruent number.

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, 1066476 + ... + 1066555.

It is an arithmetic number, because the mean of its divisors is an integer number (11998305).

Almost surely, 2^85321240 is an apocalyptic number.

It is an amenable number.

85321240 is an abundant number, since it is smaller than the sum of its proper divisors (106651640).

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

85321240 is a wasteful number, since it uses less digits than its factorization.

85321240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133042 (or 2133038 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 85321240 is about 9236.9497129734. The cubic root of 85321240 is about 440.2361679811.

Adding to 85321240 its reverse (4212358), we get a palindrome (89533598).

The spelling of 85321240 in words is "eighty-five million, three hundred twenty-one thousand, two hundred forty".