42679942 has 4 divisors (see below), whose sum is σ = 64019916. Its totient is φ = 21339970.

The previous prime is 42679933. The next prime is 42679993. The reversal of 42679942 is 24997624.

42679942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10669984 + ... + 10669987.

It is an arithmetic number, because the mean of its divisors is an integer number (16004979).

Almost surely, 2^42679942 is an apocalyptic number.

42679942 is a deficient number, since it is larger than the sum of its proper divisors (21339974).

42679942 is a wasteful number, since it uses less digits than its factorization.

42679942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21339973.

The product of its digits is 217728, while the sum is 43.

The square root of 42679942 is about 6532.9887494163. The cubic root of 42679942 is about 349.4684229861.

The spelling of 42679942 in words is "forty-two million, six hundred seventy-nine thousand, nine hundred forty-two".