42168335 has 16 divisors (see below), whose sum is σ = 55544832. Its totient is φ = 30477600.

The previous prime is 42168331. The next prime is 42168367. The reversal of 42168335 is 53386124.

It is not a de Polignac number, because 42168335 - 2² = 42168331 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42168331) 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 15 ways as a sum of consecutive naturals, for example, 6890 + ... + 11480.

It is an arithmetic number, because the mean of its divisors is an integer number (3471552).

Almost surely, 2^42168335 is an apocalyptic number.

42168335 is a deficient number, since it is larger than the sum of its proper divisors (13376497).

42168335 is a wasteful number, since it uses less digits than its factorization.

42168335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774.

The product of its digits is 17280, while the sum is 32.

The square root of 42168335 is about 6493.7150384044. The cubic root of 42168335 is about 348.0664398402.

The spelling of 42168335 in words is "forty-two million, one hundred sixty-eight thousand, three hundred thirty-five".