71327140 has 48 divisors (see below), whose sum is σ = 164545920. Its totient is φ = 25850880.

The previous prime is 71327131. The next prime is 71327143. The reversal of 71327140 is 4172317.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71327143) 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, 4660 + ... + 12820.

It is an arithmetic number, because the mean of its divisors is an integer number (3428040).

Almost surely, 2^71327140 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 71327140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82272960).

71327140 is an abundant number, since it is smaller than the sum of its proper divisors (93218780).

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

71327140 is a wasteful number, since it uses less digits than its factorization.

71327140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212 (or 8210 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 71327140 is about 8445.5396512005. The cubic root of 71327140 is about 414.7167758337.

Adding to 71327140 its reverse (4172317), we get a palindrome (75499457).

The spelling of 71327140 in words is "seventy-one million, three hundred twenty-seven thousand, one hundred forty".