71024256 has 64 divisors (see below), whose sum is σ = 209630400. Its totient is φ = 23673600.

The previous prime is 71024251. The next prime is 71024257. The reversal of 71024256 is 65242017.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (71024251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6820 + ... + 13731.

It is an arithmetic number, because the mean of its divisors is an integer number (3275475).

Almost surely, 2^71024256 is an apocalyptic number.

It is an amenable number.

71024256 is an abundant number, since it is smaller than the sum of its proper divisors (138606144).

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

71024256 is a wasteful number, since it uses less digits than its factorization.

71024256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20574 (or 20556 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 71024256 is about 8427.5889790616. The cubic root of 71024256 is about 414.1289243506.

The spelling of 71024256 in words is "seventy-one million, twenty-four thousand, two hundred fifty-six".