42244541 has 4 divisors (see below), whose sum is σ = 44729532. Its totient is φ = 39759552.

The previous prime is 42244519. The next prime is 42244549. The reversal of 42244541 is 14544224.

42244541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13579225 + 28665316 = 3685^2 + 5354^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42244541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42244541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42244549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242470 + ... + 1242503.

It is an arithmetic number, because the mean of its divisors is an integer number (11182383).

Almost surely, 2^42244541 is an apocalyptic number.

It is an amenable number.

42244541 is a deficient number, since it is larger than the sum of its proper divisors (2484991).

42244541 is a wasteful number, since it uses less digits than its factorization.

42244541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484990.

The product of its digits is 5120, while the sum is 26.

The square root of 42244541 is about 6499.5800633579. The cubic root of 42244541 is about 348.2759871918.

Adding to 42244541 its reverse (14544224), we get a palindrome (56788765).

The spelling of 42244541 in words is "forty-two million, two hundred forty-four thousand, five hundred forty-one".