79130042 has 16 divisors (see below), whose sum is σ = 124008192. Its totient is φ = 37824960.

The previous prime is 79130039. The next prime is 79130047. The reversal of 79130042 is 24003197.

It is a super-3 number, since 3×79130042³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79129993 and 79130020.

It is not an unprimeable number, because it can be changed into a prime (79130047) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2543 + ... + 12834.

It is an arithmetic number, because the mean of its divisors is an integer number (7750512).

Almost surely, 2^79130042 is an apocalyptic number.

79130042 is a deficient number, since it is larger than the sum of its proper divisors (44878150).

79130042 is a wasteful number, since it uses less digits than its factorization.

79130042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15493.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 79130042 is about 8895.5068433451. The cubic root of 79130042 is about 429.3193522307.

The spelling of 79130042 in words is "seventy-nine million, one hundred thirty thousand, forty-two".