679830042 has 16 divisors (see below), whose sum is σ = 1365652512. Its totient is φ = 225611280.

The previous prime is 679830023. The next prime is 679830049. The reversal of 679830042 is 240038976.

It is not an unprimeable number, because it can be changed into a prime (679830049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248209 + ... + 250932.

It is an arithmetic number, because the mean of its divisors is an integer number (85353282).

Almost surely, 2^679830042 is an apocalyptic number.

679830042 is an abundant number, since it is smaller than the sum of its proper divisors (685822470).

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

679830042 is a wasteful number, since it uses less digits than its factorization.

679830042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499373.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 679830042 is about 26073.5506212714. The cubic root of 679830042 is about 879.2926659372.

The spelling of 679830042 in words is "six hundred seventy-nine million, eight hundred thirty thousand, forty-two".