85041340 has 48 divisors (see below), whose sum is σ = 194493600. Its totient is φ = 31110912.

The previous prime is 85041337. The next prime is 85041343. The reversal of 85041340 is 4314058.

It is an interprime number because it is at equal distance from previous prime (85041337) and next prime (85041343).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85041343) 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 15 ways as a sum of consecutive naturals, for example, 7162 + ... + 14878.

It is an arithmetic number, because the mean of its divisors is an integer number (4051950).

Almost surely, 2^85041340 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 85041340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97246800).

85041340 is an abundant number, since it is smaller than the sum of its proper divisors (109452260).

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

85041340 is a wasteful number, since it uses less digits than its factorization.

85041340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7774 (or 7772 counting only the distinct ones).

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

The square root of 85041340 is about 9221.7861610428. The cubic root of 85041340 is about 439.7542360312.

Adding to 85041340 its reverse (4314058), we get a palindrome (89355398).

The spelling of 85041340 in words is "eighty-five million, forty-one thousand, three hundred forty".