42679958 has 4 divisors (see below), whose sum is σ = 64019940. Its totient is φ = 21339978.

The previous prime is 42679933. The next prime is 42679993. The reversal of 42679958 is 85997624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10669988 + ... + 10669991.

It is an arithmetic number, because the mean of its divisors is an integer number (16004985).

Almost surely, 2^42679958 is an apocalyptic number.

42679958 is a deficient number, since it is larger than the sum of its proper divisors (21339982).

42679958 is a wasteful number, since it uses less digits than its factorization.

42679958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21339981.

The product of its digits is 1088640, while the sum is 50.

The square root of 42679958 is about 6532.9899739706. The cubic root of 42679958 is about 349.4684666560.

The spelling of 42679958 in words is "forty-two million, six hundred seventy-nine thousand, nine hundred fifty-eight".