71304256 has 28 divisors (see below), whose sum is σ = 149819868. Its totient is φ = 33554432.

The previous prime is 71304241. The next prime is 71304257. The reversal of 71304256 is 65240317.

It can be written as a sum of positive squares in 2 ways, for example, as 66977856 + 4326400 = 8184^2 + 2080^2 .

It is not an unprimeable number, because it can be changed into a prime (71304257) by changing a digit.

In principle, a polygon with 71304256 sides can be constructed with ruler and compass.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31681 + ... + 33856.

Almost surely, 2^71304256 is an apocalyptic number.

It is an amenable number.

71304256 is an abundant number, since it is smaller than the sum of its proper divisors (78515612).

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

71304256 is a wasteful number, since it uses less digits than its factorization.

71304256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65566 (or 65556 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 71304256 is about 8444.1847445446. The cubic root of 71304256 is about 414.6724196751.

The spelling of 71304256 in words is "seventy-one million, three hundred four thousand, two hundred fifty-six".