71331244 has 12 divisors (see below), whose sum is σ = 131399800. Its totient is φ = 33788448.

The previous prime is 71331241. The next prime is 71331251. The reversal of 71331244 is 44213317.

It is not an unprimeable number, because it can be changed into a prime (71331241) 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 3 ways as a sum of consecutive naturals, for example, 469209 + ... + 469360.

Almost surely, 2^71331244 is an apocalyptic number.

It is an amenable number.

71331244 is a deficient number, since it is larger than the sum of its proper divisors (60068556).

71331244 is a wasteful number, since it uses less digits than its factorization.

71331244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938592 (or 938590 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 71331244 is about 8445.7826161937. The cubic root of 71331244 is about 414.7247296318.

The spelling of 71331244 in words is "seventy-one million, three hundred thirty-one thousand, two hundred forty-four".