71438118 has 8 divisors (see below), whose sum is σ = 142876248. Its totient is φ = 23812704.

The previous prime is 71438071. The next prime is 71438149. The reversal of 71438118 is 81183417.

It is a sphenic number, since it is the product of 3 distinct primes.

71438118 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5953171 + ... + 5953182.

It is an arithmetic number, because the mean of its divisors is an integer number (17859531).

Almost surely, 2^71438118 is an apocalyptic number.

71438118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71438118 is a wasteful number, since it uses less digits than its factorization.

71438118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11906358.

The product of its digits is 5376, while the sum is 33.

The square root of 71438118 is about 8452.1073111976. The cubic root of 71438118 is about 414.9317505223.

The spelling of 71438118 in words is "seventy-one million, four hundred thirty-eight thousand, one hundred eighteen".