42041605 has 8 divisors (see below), whose sum is σ = 51680664. Its totient is φ = 32812800.

The previous prime is 42041603. The next prime is 42041609. The reversal of 42041605 is 50614024.

It can be written as a sum of positive squares in 4 ways, for example, as 2490084 + 39551521 = 1578^2 + 6289^2 .

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

It is not a de Polignac number, because 42041605 - 2¹ = 42041603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42041603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102336 + ... + 102745.

It is an arithmetic number, because the mean of its divisors is an integer number (6460083).

Almost surely, 2^42041605 is an apocalyptic number.

It is an amenable number.

42041605 is a deficient number, since it is larger than the sum of its proper divisors (9639059).

42041605 is a wasteful number, since it uses less digits than its factorization.

42041605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205127.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 42041605 is about 6483.9497993121. The cubic root of 42041605 is about 347.7174044581.

Adding to 42041605 its reverse (50614024), we get a palindrome (92655629).

It can be divided in two parts, 420 and 41605, that added together give a square (42025 = 205²).

The spelling of 42041605 in words is "forty-two million, forty-one thousand, six hundred five".