4421541 has 4 divisors (see below), whose sum is σ = 5895392. Its totient is φ = 2947692.

The previous prime is 4421539. The next prime is 4421567. The reversal of 4421541 is 1451244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4421541 - 2¹ = 4421539 is a prime.

It is a D-number.

It is a Duffinian number.

4421541 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421041) 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, 736921 + ... + 736926.

It is an arithmetic number, because the mean of its divisors is an integer number (1473848).

Almost surely, 2^4421541 is an apocalyptic number.

It is an amenable number.

4421541 is a deficient number, since it is larger than the sum of its proper divisors (1473851).

4421541 is a wasteful number, since it uses less digits than its factorization.

4421541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473850.

The product of its digits is 640, while the sum is 21.

The square root of 4421541 is about 2102.7460617012. The cubic root of 4421541 is about 164.1312280031.

Adding to 4421541 its reverse (1451244), we get a palindrome (5872785).

The spelling of 4421541 in words is "four million, four hundred twenty-one thousand, five hundred forty-one".