42006338 has 16 divisors (see below), whose sum is σ = 68947200. Its totient is φ = 19035600.

The previous prime is 42006331. The next prime is 42006343. The reversal of 42006338 is 83360024.

It is not an unprimeable number, because it can be changed into a prime (42006331) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4943 + ... + 10413.

It is an arithmetic number, because the mean of its divisors is an integer number (4309200).

Almost surely, 2^42006338 is an apocalyptic number.

42006338 is a deficient number, since it is larger than the sum of its proper divisors (26940862).

42006338 is a wasteful number, since it uses less digits than its factorization.

42006338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5833.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 42006338 is about 6481.2296672777. The cubic root of 42006338 is about 347.6201485750.

The spelling of 42006338 in words is "forty-two million, six thousand, three hundred thirty-eight".