71411444 has 24 divisors (see below), whose sum is σ = 135925608. Its totient is φ = 32630400.

The previous prime is 71411437. The next prime is 71411449. The reversal of 71411444 is 44411417.

It can be written as a sum of positive squares in 4 ways, for example, as 4368100 + 67043344 = 2090^2 + 8188^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71411449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1547 + ... + 12050.

It is an arithmetic number, because the mean of its divisors is an integer number (5663567).

Almost surely, 2^71411444 is an apocalyptic number.

It is an amenable number.

71411444 is a deficient number, since it is larger than the sum of its proper divisors (64514164).

71411444 is a wasteful number, since it uses less digits than its factorization.

71411444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13715 (or 13713 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 71411444 is about 8450.5292141972. The cubic root of 71411444 is about 414.8801008445.

The spelling of 71411444 in words is "seventy-one million, four hundred eleven thousand, four hundred forty-four".