71340312 has 32 divisors (see below), whose sum is σ = 178560000. Its totient is φ = 23752224.

The previous prime is 71340281. The next prime is 71340317. The reversal of 71340312 is 21304317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71340317) 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, 34689 + ... + 36687.

It is an arithmetic number, because the mean of its divisors is an integer number (5580000).

Almost surely, 2^71340312 is an apocalyptic number.

It is an amenable number.

71340312 is an abundant number, since it is smaller than the sum of its proper divisors (107219688).

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

71340312 is a wasteful number, since it uses less digits than its factorization.

71340312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495 (or 3491 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 71340312 is about 8446.3194351149. The cubic root of 71340312 is about 414.7423028778.

Adding to 71340312 its reverse (21304317), we get a palindrome (92644629).

It can be divided in two parts, 713403 and 12, that added together give a triangular number (713415 = T₁₁₉₄).

The spelling of 71340312 in words is "seventy-one million, three hundred forty thousand, three hundred twelve".