71392194 has 48 divisors (see below), whose sum is σ = 161441280. Its totient is φ = 22775040.

The previous prime is 71392187. The next prime is 71392241. The reversal of 71392194 is 49129317.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53467 + ... + 54785.

It is an arithmetic number, because the mean of its divisors is an integer number (3363360).

Almost surely, 2^71392194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71392194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80720640).

71392194 is an abundant number, since it is smaller than the sum of its proper divisors (90049086).

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

71392194 is a wasteful number, since it uses less digits than its factorization.

71392194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455 (or 1452 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 71392194 is about 8449.3901555083. The cubic root of 71392194 is about 414.8428184930.

The spelling of 71392194 in words is "seventy-one million, three hundred ninety-two thousand, one hundred ninety-four".