71350528 has 36 divisors (see below), whose sum is σ = 143785180. Its totient is φ = 35334144.

The previous prime is 71350523. The next prime is 71350549. The reversal of 71350528 is 82505317.

It can be written as a sum of positive squares in 2 ways, for example, as 40347904 + 31002624 = 6352^2 + 5568^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 71350528.

It is not an unprimeable number, because it can be changed into a prime (71350523) 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 3 ways as a sum of consecutive naturals, for example, 26626 + ... + 29182.

Almost surely, 2^71350528 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 71350528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71892590).

71350528 is an abundant number, since it is smaller than the sum of its proper divisors (72434652).

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

71350528 is a wasteful number, since it uses less digits than its factorization.

71350528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682 (or 2668 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 71350528 is about 8446.9241739227. The cubic root of 71350528 is about 414.7620990959.

The spelling of 71350528 in words is "seventy-one million, three hundred fifty thousand, five hundred twenty-eight".