42041365 has 4 divisors (see below), whose sum is σ = 50449644. Its totient is φ = 33633088.

The previous prime is 42041353. The next prime is 42041369. The reversal of 42041365 is 56314024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20007729 + 22033636 = 4473^2 + 4694^2 .

It is a cyclic number.

It is not a de Polignac number, because 42041365 - 2⁹ = 42040853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42041369) 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 3 ways as a sum of consecutive naturals, for example, 4204132 + ... + 4204141.

It is an arithmetic number, because the mean of its divisors is an integer number (12612411).

Almost surely, 2^42041365 is an apocalyptic number.

It is an amenable number.

42041365 is a deficient number, since it is larger than the sum of its proper divisors (8408279).

42041365 is an equidigital number, since it uses as much as digits as its factorization.

42041365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8408278.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 42041365 is about 6483.9312920481. The cubic root of 42041365 is about 347.7167427934.

Adding to 42041365 its reverse (56314024), we get a palindrome (98355389).

The spelling of 42041365 in words is "forty-two million, forty-one thousand, three hundred sixty-five".