71006280 has 64 divisors (see below), whose sum is σ = 225555840. Its totient is φ = 17820672.

The previous prime is 71006269. The next prime is 71006311. The reversal of 71006280 is 8260017.

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 71006280.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15364 + ... + 19443.

It is an arithmetic number, because the mean of its divisors is an integer number (3524310).

Almost surely, 2^71006280 is an apocalyptic number.

It is an amenable number.

71006280 is an abundant number, since it is smaller than the sum of its proper divisors (154549560).

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

71006280 is a wasteful number, since it uses less digits than its factorization.

71006280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34838 (or 34834 counting only the distinct ones).

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

The square root of 71006280 is about 8426.5224143771. The cubic root of 71006280 is about 414.0939831905.

Adding to 71006280 its reverse (8260017), we get a palindrome (79266297).

The spelling of 71006280 in words is "seventy-one million, six thousand, two hundred eighty".