4424421 has 8 divisors (see below), whose sum is σ = 5909760. Its totient is φ = 2944352.

The previous prime is 4424411. The next prime is 4424429. The reversal of 4424421 is 1244244.

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

It is a cyclic number.

It is not a de Polignac number, because 4424421 - 2⁵ = 4424389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4424429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1516 + ... + 3338.

It is an arithmetic number, because the mean of its divisors is an integer number (738720).

Almost surely, 2^4424421 is an apocalyptic number.

It is an amenable number.

4424421 is a deficient number, since it is larger than the sum of its proper divisors (1485339).

4424421 is a wasteful number, since it uses less digits than its factorization.

4424421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635.

The product of its digits is 1024, while the sum is 21.

The square root of 4424421 is about 2103.4307690057. The cubic root of 4424421 is about 164.1668562559.

Adding to 4424421 its reverse (1244244), we get a palindrome (5668665).

The spelling of 4424421 in words is "four million, four hundred twenty-four thousand, four hundred twenty-one".