71328458 has 16 divisors (see below), whose sum is σ = 114255360. Its totient is φ = 33322800.

The previous prime is 71328449. The next prime is 71328559. The reversal of 71328458 is 85482317.

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, 18038 + ... + 21633.

It is an arithmetic number, because the mean of its divisors is an integer number (7140960).

Almost surely, 2^71328458 is an apocalyptic number.

71328458 is a deficient number, since it is larger than the sum of its proper divisors (42926902).

71328458 is a wasteful number, since it uses less digits than its factorization.

71328458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39733.

The product of its digits is 53760, while the sum is 38.

The square root of 71328458 is about 8445.6176801937. The cubic root of 71328458 is about 414.7193302300.

The spelling of 71328458 in words is "seventy-one million, three hundred twenty-eight thousand, four hundred fifty-eight".