71741440 has 104 divisors (see below), whose sum is σ = 179284608. Its totient is φ = 27525120.

The previous prime is 71741419. The next prime is 71741441. The reversal of 71741440 is 4414717.

It is a junction number, because it is equal to n+sod(n) for n = 71741399 and 71741408.

It is not an unprimeable number, because it can be changed into a prime (71741441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634824 + ... + 634936.

Almost surely, 2^71741440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71741440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89642304).

71741440 is an abundant number, since it is smaller than the sum of its proper divisors (107543168).

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

71741440 is a wasteful number, since it uses less digits than its factorization.

71741440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 71741440 is about 8470.0318771537. The cubic root of 71741440 is about 415.5181798335.

The spelling of 71741440 in words is "seventy-one million, seven hundred forty-one thousand, four hundred forty".