42537841 has 4 divisors (see below), whose sum is σ = 42550900. Its totient is φ = 42524784.

The previous prime is 42537839. The next prime is 42537851. The reversal of 42537841 is 14873524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22287841 + 20250000 = 4721^2 + 4500^2 .

It is a cyclic number.

It is not a de Polignac number, because 42537841 - 2¹ = 42537839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42537797 and 42537806.

It is not an unprimeable number, because it can be changed into a prime (42537821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2815 + ... + 9643.

It is an arithmetic number, because the mean of its divisors is an integer number (10637725).

Almost surely, 2^42537841 is an apocalyptic number.

It is an amenable number.

42537841 is a deficient number, since it is larger than the sum of its proper divisors (13059).

42537841 is an equidigital number, since it uses as much as digits as its factorization.

42537841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13058.

The product of its digits is 26880, while the sum is 34.

The square root of 42537841 is about 6522.1040316757. The cubic root of 42537841 is about 349.0801451393.

The spelling of 42537841 in words is "forty-two million, five hundred thirty-seven thousand, eight hundred forty-one".