85271340 has 96 divisors (see below), whose sum is σ = 297690624. Its totient is φ = 17717760.

The previous prime is 85271323. The next prime is 85271341. The reversal of 85271340 is 4317258.

85271340 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

85271340 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 85271298 and 85271307.

It is not an unprimeable number, because it can be changed into a prime (85271341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4609 + ... + 13848.

It is an arithmetic number, because the mean of its divisors is an integer number (3100944).

Almost surely, 2^85271340 is an apocalyptic number.

It is an amenable number.

85271340 is an abundant number, since it is smaller than the sum of its proper divisors (212419284).

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

85271340 is a wasteful number, since it uses less digits than its factorization.

85271340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18487 (or 18485 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 85271340 is about 9234.2482097895. The cubic root of 85271340 is about 440.1503274222.

Adding to 85271340 its reverse (4317258), we get a palindrome (89588598).

The spelling of 85271340 in words is "eighty-five million, two hundred seventy-one thousand, three hundred forty".