7071438842 has 16 divisors (see below), whose sum is σ = 11437041672. Its totient is φ = 3259755840.

The previous prime is 7071438839. The next prime is 7071438883. The reversal of 7071438842 is 2488341707.

It can be written as a sum of positive squares in 4 ways, for example, as 3574963681 + 3496475161 = 59791^2 + 59131^2 .

It is a super-2 number, since 2×7071438842² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7071438793 and 7071438802.

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, 144293 + ... + 186984.

Almost surely, 2^7071438842 is an apocalyptic number.

7071438842 is a deficient number, since it is larger than the sum of its proper divisors (4365602830).

7071438842 is a wasteful number, since it uses less digits than its factorization.

7071438842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332113.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 7071438842 is about 84091.8476548113. The cubic root of 7071438842 is about 1919.4166741038.

The spelling of 7071438842 in words is "seven billion, seventy-one million, four hundred thirty-eight thousand, eight hundred forty-two".