42041505 has 32 divisors (see below), whose sum is σ = 74602368. Its totient is φ = 20044800.

The previous prime is 42041497. The next prime is 42041507. The reversal of 42041505 is 50514024.

It is not a de Polignac number, because 42041505 - 2³ = 42041497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42041507) 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 31 ways as a sum of consecutive naturals, for example, 7977 + ... + 12153.

It is an arithmetic number, because the mean of its divisors is an integer number (2331324).

Almost surely, 2^42041505 is an apocalyptic number.

It is an amenable number.

42041505 is a deficient number, since it is larger than the sum of its proper divisors (32560863).

42041505 is a wasteful number, since it uses less digits than its factorization.

42041505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 42041505 is about 6483.9420879585. The cubic root of 42041505 is about 347.7171287648.

Adding to 42041505 its reverse (50514024), we get a palindrome (92555529).

The spelling of 42041505 in words is "forty-two million, forty-one thousand, five hundred five".