4344421 has 4 divisors (see below), whose sum is σ = 4373344. Its totient is φ = 4315500.

The previous prime is 4344397. The next prime is 4344427. The reversal of 4344421 is 1244434.

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 a cyclic number.

It is not a de Polignac number, because 4344421 - 2¹³ = 4336229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4344392 and 4344401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4344427) 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, 14235 + ... + 14536.

It is an arithmetic number, because the mean of its divisors is an integer number (1093336).

Almost surely, 2^4344421 is an apocalyptic number.

It is an amenable number.

4344421 is a deficient number, since it is larger than the sum of its proper divisors (28923).

4344421 is a wasteful number, since it uses less digits than its factorization.

4344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28922.

The product of its digits is 1536, while the sum is 22.

The square root of 4344421 is about 2084.3274694731. The cubic root of 4344421 is about 163.1713730746.

Adding to 4344421 its reverse (1244434), we get a palindrome (5588855).

The spelling of 4344421 in words is "four million, three hundred forty-four thousand, four hundred twenty-one".