42165235 has 24 divisors (see below), whose sum is σ = 59877360. Its totient is φ = 28413504.

The previous prime is 42165229. The next prime is 42165247. The reversal of 42165235 is 53256124.

It is not a de Polignac number, because 42165235 - 2⁹ = 42164723 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12997 + ... + 15913.

It is an arithmetic number, because the mean of its divisors is an integer number (2494890).

Almost surely, 2^42165235 is an apocalyptic number.

42165235 is a deficient number, since it is larger than the sum of its proper divisors (17712125).

42165235 is a wasteful number, since it uses less digits than its factorization.

42165235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995 (or 2988 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 42165235 is about 6493.4763416832. The cubic root of 42165235 is about 348.0579102772.

It can be divided in two parts, 421 and 65235, that added together give a palindrome (65656).

The spelling of 42165235 in words is "forty-two million, one hundred sixty-five thousand, two hundred thirty-five".