42441321 has 8 divisors (see below), whose sum is σ = 60941440. Its totient is φ = 26117712.

The previous prime is 42441319. The next prime is 42441323. The reversal of 42441321 is 12314424.

42441321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42441319) and next prime (42441323).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42441321 - 2¹ = 42441319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42441323) 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 7 ways as a sum of consecutive naturals, for example, 544081 + ... + 544158.

It is an arithmetic number, because the mean of its divisors is an integer number (7617680).

Almost surely, 2^42441321 is an apocalyptic number.

It is an amenable number.

42441321 is a deficient number, since it is larger than the sum of its proper divisors (18500119).

42441321 is a wasteful number, since it uses less digits than its factorization.

42441321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088255.

The product of its digits is 768, while the sum is 21.

The square root of 42441321 is about 6514.7003768401. The cubic root of 42441321 is about 348.8159197601.

Adding to 42441321 its reverse (12314424), we get a palindrome (54755745).

It can be divided in two parts, 4244 and 1321, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 42441321 in words is "forty-two million, four hundred forty-one thousand, three hundred twenty-one".