85081044 has 12 divisors (see below), whose sum is σ = 198522464. Its totient is φ = 28360344.

The previous prime is 85081043. The next prime is 85081049. The reversal of 85081044 is 44018058.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85081043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3545032 + ... + 3545055.

Almost surely, 2^85081044 is an apocalyptic number.

It is an amenable number.

85081044 is an abundant number, since it is smaller than the sum of its proper divisors (113441420).

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

85081044 is a wasteful number, since it uses less digits than its factorization.

85081044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7090094 (or 7090092 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 85081044 is about 9223.9386381307. The cubic root of 85081044 is about 439.8226626955.

The spelling of 85081044 in words is "eighty-five million, eighty-one thousand, forty-four".