71018472 has 64 divisors (see below), whose sum is σ = 205516800. Its totient is φ = 20030400.

The previous prime is 71018443. The next prime is 71018483. The reversal of 71018472 is 27481017.

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, 10597 + ... + 15947.

It is an arithmetic number, because the mean of its divisors is an integer number (3211200).

Almost surely, 2^71018472 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 71018472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102758400).

71018472 is an abundant number, since it is smaller than the sum of its proper divisors (134498328).

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

71018472 is a wasteful number, since it uses less digits than its factorization.

71018472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5446 (or 5442 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 71018472 is about 8427.2458134316. The cubic root of 71018472 is about 414.1176822442.

Adding to 71018472 its reverse (27481017), we get a palindrome (98499489).

The spelling of 71018472 in words is "seventy-one million, eighteen thousand, four hundred seventy-two".