42679842 has 16 divisors (see below), whose sum is σ = 85455552. Its totient is φ = 14210640.

The previous prime is 42679831. The next prime is 42679849. The reversal of 42679842 is 24897624.

It is a junction number, because it is equal to n+sod(n) for n = 42679794 and 42679803.

It is not an unprimeable number, because it can be changed into a prime (42679849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2643 + ... + 9609.

It is an arithmetic number, because the mean of its divisors is an integer number (5340972).

Almost surely, 2^42679842 is an apocalyptic number.

42679842 is an abundant number, since it is smaller than the sum of its proper divisors (42775710).

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

42679842 is a wasteful number, since it uses less digits than its factorization.

42679842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7993.

The product of its digits is 193536, while the sum is 42.

The square root of 42679842 is about 6532.9810959469. The cubic root of 42679842 is about 349.4681500486.

The spelling of 42679842 in words is "forty-two million, six hundred seventy-nine thousand, eight hundred forty-two".