71044872 has 64 divisors (see below), whose sum is σ = 181906560. Its totient is φ = 23116800.

The previous prime is 71044859. The next prime is 71044879. The reversal of 71044872 is 27844017.

It is not an unprimeable number, because it can be changed into a prime (71044879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294672 + ... + 294912.

It is an arithmetic number, because the mean of its divisors is an integer number (2842290).

Almost surely, 2^71044872 is an apocalyptic number.

It is an amenable number.

71044872 is an abundant number, since it is smaller than the sum of its proper divisors (110861688).

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

71044872 is a wasteful number, since it uses less digits than its factorization.

71044872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 71044872 is about 8428.8120159368. The cubic root of 71044872 is about 414.1689897989.

Adding to 71044872 its reverse (27844017), we get a palindrome (98888889).

The spelling of 71044872 in words is "seventy-one million, forty-four thousand, eight hundred seventy-two".