85350440 has 64 divisors (see below), whose sum is σ = 226575360. Its totient is φ = 28316160.

The previous prime is 85350439. The next prime is 85350467. The reversal of 85350440 is 4405358.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3764 + ... + 13596.

It is an arithmetic number, because the mean of its divisors is an integer number (3540240).

Almost surely, 2^85350440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85350440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113287680).

85350440 is an abundant number, since it is smaller than the sum of its proper divisors (141224920).

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

85350440 is a wasteful number, since it uses less digits than its factorization.

85350440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9882 (or 9878 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 85350440 is about 9238.5301861281. The cubic root of 85350440 is about 440.2863838082.

Adding to 85350440 its reverse (4405358), we get a palindrome (89755798).

The spelling of 85350440 in words is "eighty-five million, three hundred fifty thousand, four hundred forty".