71019442 has 8 divisors (see below), whose sum is σ = 114723756. Its totient is φ = 32778192.

The previous prime is 71019439. The next prime is 71019451. The reversal of 71019442 is 24491017.

It can be written as a sum of positive squares in 2 ways, for example, as 70207641 + 811801 = 8379^2 + 901^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×71019442² = 10087522283982728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71019442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1365733 + ... + 1365784.

Almost surely, 2^71019442 is an apocalyptic number.

71019442 is a deficient number, since it is larger than the sum of its proper divisors (43704314).

71019442 is a wasteful number, since it uses less digits than its factorization.

71019442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731532.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 71019442 is about 8427.3033646594. The cubic root of 71019442 is about 414.1195676331.

The spelling of 71019442 in words is "seventy-one million, nineteen thousand, four hundred forty-two".