71472018 has 16 divisors (see below), whose sum is σ = 143027136. Its totient is φ = 23810160.

The previous prime is 71471989. The next prime is 71472031. The reversal of 71472018 is 81027417.

It is a Curzon number.

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, 17280 + ... + 21012.

It is an arithmetic number, because the mean of its divisors is an integer number (8939196).

Almost surely, 2^71472018 is an apocalyptic number.

71472018 is an abundant number, since it is smaller than the sum of its proper divisors (71555118).

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

71472018 is a wasteful number, since it uses less digits than its factorization.

71472018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6929.

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

The square root of 71472018 is about 8454.1124903801. The cubic root of 71472018 is about 414.9973735741.

The spelling of 71472018 in words is "seventy-one million, four hundred seventy-two thousand, eighteen".