424441321 has 4 divisors (see below), whose sum is σ = 424583044. Its totient is φ = 424299600.

The previous prime is 424441301. The next prime is 424441351. The reversal of 424441321 is 123144424.

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 399800025 + 24641296 = 19995^2 + 4964^2 .

It is a cyclic number.

It is not a de Polignac number, because 424441321 - 2¹³ = 424433129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424441301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66270 + ... + 72391.

It is an arithmetic number, because the mean of its divisors is an integer number (106145761).

Almost surely, 2^424441321 is an apocalyptic number.

It is an amenable number.

424441321 is a deficient number, since it is larger than the sum of its proper divisors (141723).

424441321 is a wasteful number, since it uses less digits than its factorization.

424441321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141722.

The product of its digits is 3072, while the sum is 25.

The square root of 424441321 is about 20601.9737161273. The cubic root of 424441321 is about 751.5177094870.

Adding to 424441321 its reverse (123144424), we get a palindrome (547585745).

The spelling of 424441321 in words is "four hundred twenty-four million, four hundred forty-one thousand, three hundred twenty-one".