71318388 has 24 divisors (see below), whose sum is σ = 170908192. Its totient is φ = 23130144.

The previous prime is 71318369. The next prime is 71318399. The reversal of 71318388 is 88381317.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79870 + ... + 80757.

Almost surely, 2^71318388 is an apocalyptic number.

It is an amenable number.

71318388 is an abundant number, since it is smaller than the sum of its proper divisors (99589804).

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

71318388 is a wasteful number, since it uses less digits than its factorization.

71318388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160671 (or 160669 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 71318388 is about 8445.0214919798. The cubic root of 71318388 is about 414.6998129138.

The spelling of 71318388 in words is "seventy-one million, three hundred eighteen thousand, three hundred eighty-eight".