42169995 has 24 divisors (see below), whose sum is σ = 83537376. Its totient is φ = 19277568.

The previous prime is 42169943. The next prime is 42169997. The reversal of 42169995 is 59996124.

42169995 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 42169995 - 2⁶ = 42169931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 42169995.

It is not an unprimeable number, because it can be changed into a prime (42169997) 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 23 ways as a sum of consecutive naturals, for example, 66622 + ... + 67251.

It is an arithmetic number, because the mean of its divisors is an integer number (3480724).

Almost surely, 2^42169995 is an apocalyptic number.

42169995 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42169995 is a deficient number, since it is larger than the sum of its proper divisors (41367381).

42169995 is a wasteful number, since it uses less digits than its factorization.

42169995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133891 (or 133888 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 42169995 is about 6493.8428530416. The cubic root of 42169995 is about 348.0710071117.

The spelling of 42169995 in words is "forty-two million, one hundred sixty-nine thousand, nine hundred ninety-five".