71384444 has 48 divisors (see below), whose sum is σ = 139238400. Its totient is φ = 31881600.

The previous prime is 71384431. The next prime is 71384447. The reversal of 71384444 is 44448317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71384447) 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 15 ways as a sum of consecutive naturals, for example, 96227 + ... + 96965.

It is an arithmetic number, because the mean of its divisors is an integer number (2900800).

Almost surely, 2^71384444 is an apocalyptic number.

It is an amenable number.

71384444 is a deficient number, since it is larger than the sum of its proper divisors (67853956).

71384444 is a wasteful number, since it uses less digits than its factorization.

71384444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 832 counting only the distinct ones).

The product of its digits is 43008, while the sum is 35.

The square root of 71384444 is about 8448.9315300812. The cubic root of 71384444 is about 414.8278068229.

The spelling of 71384444 in words is "seventy-one million, three hundred eighty-four thousand, four hundred forty-four".