71058018 has 16 divisors (see below), whose sum is σ = 142240896. Its totient is φ = 23665200.

The previous prime is 71057963. The next prime is 71058023. The reversal of 71058018 is 81085017.

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, 3255 + ... + 12357.

It is an arithmetic number, because the mean of its divisors is an integer number (8890056).

Almost surely, 2^71058018 is an apocalyptic number.

71058018 is an abundant number, since it is smaller than the sum of its proper divisors (71182878).

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

71058018 is a wasteful number, since it uses less digits than its factorization.

71058018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10409.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 71058018 is about 8429.5918050639. The cubic root of 71058018 is about 414.1945338886.

The spelling of 71058018 in words is "seventy-one million, fifty-eight thousand, eighteen".