71340288 has 72 divisors (see below), whose sum is σ = 199903200. Its totient is φ = 22523904.

The previous prime is 71340281. The next prime is 71340317. The reversal of 71340288 is 88204317.

It is not an unprimeable number, because it can be changed into a prime (71340281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12148 + ... + 17036.

Almost surely, 2^71340288 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 71340288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99951600).

71340288 is an abundant number, since it is smaller than the sum of its proper divisors (128562912).

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

71340288 is a wasteful number, since it uses less digits than its factorization.

71340288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4927 (or 4913 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 71340288 is about 8446.3180143776. The cubic root of 71340288 is about 414.7422563692.

The spelling of 71340288 in words is "seventy-one million, three hundred forty thousand, two hundred eighty-eight".