71260080 has 80 divisors (see below), whose sum is σ = 223256544. Its totient is φ = 18800640.

The previous prime is 71260031. The next prime is 71260087. The reversal of 71260080 is 8006217.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 71260080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71260087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21750 + ... + 24810.

Almost surely, 2^71260080 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 71260080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111628272).

71260080 is an abundant number, since it is smaller than the sum of its proper divisors (151996464).

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

71260080 is a wasteful number, since it uses less digits than its factorization.

71260080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174 (or 3168 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 71260080 is about 8441.5685746193. The cubic root of 71260080 is about 414.5867662878.

Adding to 71260080 its reverse (8006217), we get a palindrome (79266297).

The spelling of 71260080 in words is "seventy-one million, two hundred sixty thousand, eighty".