42167842 has 8 divisors (see below), whose sum is σ = 63493056. Its totient is φ = 21003492.

The previous prime is 42167819. The next prime is 42167861. The reversal of 42167842 is 24876124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42167798 and 42167807.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 39558 + ... + 40609.

It is an arithmetic number, because the mean of its divisors is an integer number (7936632).

Almost surely, 2^42167842 is an apocalyptic number.

42167842 is a deficient number, since it is larger than the sum of its proper divisors (21325214).

42167842 is a wasteful number, since it uses less digits than its factorization.

42167842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80432.

The product of its digits is 21504, while the sum is 34.

The square root of 42167842 is about 6493.6770785126. The cubic root of 42167842 is about 348.0650833925.

The spelling of 42167842 in words is "forty-two million, one hundred sixty-seven thousand, eight hundred forty-two".