42169965 has 8 divisors (see below), whose sum is σ = 67471968. Its totient is φ = 22490640.

The previous prime is 42169943. The next prime is 42169997. The reversal of 42169965 is 56996124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42169965 - 2⁸ = 42169709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405651 + ... + 1405680.

It is an arithmetic number, because the mean of its divisors is an integer number (8433996).

Almost surely, 2^42169965 is an apocalyptic number.

It is an amenable number.

42169965 is a deficient number, since it is larger than the sum of its proper divisors (25302003).

42169965 is a wasteful number, since it uses less digits than its factorization.

42169965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811339.

The product of its digits is 116640, while the sum is 42.

The square root of 42169965 is about 6493.8405431609. The cubic root of 42169965 is about 348.0709245718.

It can be divided in two parts, 42169 and 965, that added together give a palindrome (43134).

The spelling of 42169965 in words is "forty-two million, one hundred sixty-nine thousand, nine hundred sixty-five".