42122806 has 8 divisors (see below), whose sum is σ = 68928264. Its totient is φ = 19146720.

The previous prime is 42122803. The next prime is 42122813. The reversal of 42122806 is 60822124.

It is a happy number.

42122806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42122803) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 957315 + ... + 957358.

It is an arithmetic number, because the mean of its divisors is an integer number (8616033).

Almost surely, 2^42122806 is an apocalyptic number.

42122806 is a deficient number, since it is larger than the sum of its proper divisors (26805458).

42122806 is a wasteful number, since it uses less digits than its factorization.

42122806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914686.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 42122806 is about 6490.2084712280. The cubic root of 42122806 is about 347.9411260337.

The spelling of 42122806 in words is "forty-two million, one hundred twenty-two thousand, eight hundred six".