71042480 has 40 divisors (see below), whose sum is σ = 166295904. Its totient is φ = 28224000.

The previous prime is 71042471. The next prime is 71042519. The reversal of 71042480 is 8424017.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9140 + ... + 15020.

Almost surely, 2^71042480 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 71042480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83147952).

71042480 is an abundant number, since it is smaller than the sum of its proper divisors (95253424).

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

71042480 is a wasteful number, since it uses less digits than its factorization.

71042480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6045 (or 6039 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 71042480 is about 8428.6701204876. The cubic root of 71042480 is about 414.1643415472.

Adding to 71042480 its reverse (8424017), we get a palindrome (79466497).

The spelling of 71042480 in words is "seventy-one million, forty-two thousand, four hundred eighty".