42165435 has 16 divisors (see below), whose sum is σ = 72654624. Its totient is φ = 20758272.

The previous prime is 42165421. The next prime is 42165467. The reversal of 42165435 is 53456124.

42165435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42165435 - 2⁷ = 42165307 is a prime.

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 in 15 ways as a sum of consecutive naturals, for example, 107922 + ... + 108311.

It is an arithmetic number, because the mean of its divisors is an integer number (4540914).

Almost surely, 2^42165435 is an apocalyptic number.

42165435 is a deficient number, since it is larger than the sum of its proper divisors (30489189).

42165435 is a wasteful number, since it uses less digits than its factorization.

42165435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216254.

The product of its digits is 14400, while the sum is 30.

The square root of 42165435 is about 6493.4917417365. The cubic root of 42165435 is about 348.0584605842.

It can be divided in two parts, 421 and 65435, that added together give a palindrome (65856).

The spelling of 42165435 in words is "forty-two million, one hundred sixty-five thousand, four hundred thirty-five".