71270880 has 96 divisors (see below), whose sum is σ = 230628384. Its totient is φ = 18487296.

The previous prime is 71270863. The next prime is 71270887. The reversal of 71270880 is 8807217.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71270887) 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, 15754 + ... + 19766.

It is an arithmetic number, because the mean of its divisors is an integer number (2402379).

Almost surely, 2^71270880 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 71270880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115314192).

71270880 is an abundant number, since it is smaller than the sum of its proper divisors (159357504).

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

71270880 is a wasteful number, since it uses less digits than its factorization.

71270880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068 (or 4060 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 71270880 is about 8442.2082419234. The cubic root of 71270880 is about 414.6077098086.

The spelling of 71270880 in words is "seventy-one million, two hundred seventy thousand, eight hundred eighty".