71340756 has 48 divisors (see below), whose sum is σ = 177012864. Its totient is φ = 22312576.

The previous prime is 71340749. The next prime is 71340757. The reversal of 71340756 is 65704317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71340757) 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, 12190 + ... + 17066.

It is an arithmetic number, because the mean of its divisors is an integer number (3687768).

Almost surely, 2^71340756 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 71340756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88506432).

71340756 is an abundant number, since it is smaller than the sum of its proper divisors (105672108).

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

71340756 is a wasteful number, since it uses less digits than its factorization.

71340756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960 (or 4958 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 71340756 is about 8446.3457187117. The cubic root of 71340756 is about 414.7431632852.

The spelling of 71340756 in words is "seventy-one million, three hundred forty thousand, seven hundred fifty-six".