71034480 has 120 divisors (see below), whose sum is σ = 260273520. Its totient is φ = 17218560.

The previous prime is 71034463. The next prime is 71034499. The reversal of 71034480 is 8443017.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3436 + ... + 12404.

It is an arithmetic number, because the mean of its divisors is an integer number (2168946).

Almost surely, 2^71034480 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 71034480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130136760).

71034480 is an abundant number, since it is smaller than the sum of its proper divisors (189239040).

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

71034480 is a wasteful number, since it uses less digits than its factorization.

71034480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8999 (or 8990 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 71034480 is about 8428.1955364123. The cubic root of 71034480 is about 414.1487947968.

Adding to 71034480 its reverse (8443017), we get a palindrome (79477497).

The spelling of 71034480 in words is "seventy-one million, thirty-four thousand, four hundred eighty".