8078442340 has 12 divisors (see below), whose sum is σ = 16964728956. Its totient is φ = 3231376928.

The previous prime is 8078442319. The next prime is 8078442413. The reversal of 8078442340 is 432448708.

It can be written as a sum of positive squares in 2 ways, for example, as 6235629156 + 1842813184 = 78966^2 + 42928^2 .

It is a super-2 number, since 2×8078442340² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8078442293 and 8078442302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201961039 + ... + 201961078.

It is an arithmetic number, because the mean of its divisors is an integer number (1413727413).

Almost surely, 2^8078442340 is an apocalyptic number.

It is an amenable number.

8078442340 is an abundant number, since it is smaller than the sum of its proper divisors (8886286616).

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

8078442340 is a wasteful number, since it uses less digits than its factorization.

8078442340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403922126 (or 403922124 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The square root of 8078442340 is about 89880.1554293271. The cubic root of 8078442340 is about 2006.5156120160.

The spelling of 8078442340 in words is "eight billion, seventy-eight million, four hundred forty-two thousand, three hundred forty".