8111904242 has 8 divisors (see below), whose sum is σ = 13103845356. Its totient is φ = 3743955792.

The previous prime is 8111904239. The next prime is 8111904253. The reversal of 8111904242 is 2424091118.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7954677721 + 157226521 = 89189^2 + 12539^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 8111904199 and 8111904208.

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, 155998133 + ... + 155998184.

Almost surely, 2^8111904242 is an apocalyptic number.

8111904242 is a deficient number, since it is larger than the sum of its proper divisors (4991941114).

8111904242 is a wasteful number, since it uses less digits than its factorization.

8111904242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311996332.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 8111904242 is about 90066.1103967525. The cubic root of 8111904242 is about 2009.2822071693.

The spelling of 8111904242 in words is "eight billion, one hundred eleven million, nine hundred four thousand, two hundred forty-two".