71992194 has 16 divisors (see below), whose sum is σ = 145411200. Its totient is φ = 23759600.

The previous prime is 71992171. The next prime is 71992223. The reversal of 71992194 is 49129917.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 58794 + ... + 60005.

It is an arithmetic number, because the mean of its divisors is an integer number (9088200).

Almost surely, 2^71992194 is an apocalyptic number.

71992194 is an abundant number, since it is smaller than the sum of its proper divisors (73419006).

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

71992194 is a wasteful number, since it uses less digits than its factorization.

71992194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118905.

The product of its digits is 40824, while the sum is 42.

The square root of 71992194 is about 8484.8213888095. The cubic root of 71992194 is about 416.0017296834.

The spelling of 71992194 in words is "seventy-one million, nine hundred ninety-two thousand, one hundred ninety-four".