71285382 has 48 divisors (see below), whose sum is σ = 177465600. Its totient is φ = 20257776.

The previous prime is 71285377. The next prime is 71285419. The reversal of 71285382 is 28358217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23653 + ... + 26495.

It is an arithmetic number, because the mean of its divisors is an integer number (3697200).

Almost surely, 2^71285382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71285382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88732800).

71285382 is an abundant number, since it is smaller than the sum of its proper divisors (106180218).

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

71285382 is a wasteful number, since it uses less digits than its factorization.

71285382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057 (or 3054 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 71285382 is about 8443.0670967368. The cubic root of 71285382 is about 414.6358289751.

The spelling of 71285382 in words is "seventy-one million, two hundred eighty-five thousand, three hundred eighty-two".