4418421 has 8 divisors (see below), whose sum is σ = 6732864. Its totient is φ = 2524800.

The previous prime is 4418417. The next prime is 4418437. The reversal of 4418421 is 1248144.

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

It is not a de Polignac number, because 4418421 - 2² = 4418417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4418391 and 4418400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4418221) 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, 105180 + ... + 105221.

It is an arithmetic number, because the mean of its divisors is an integer number (841608).

Almost surely, 2^4418421 is an apocalyptic number.

It is an amenable number.

4418421 is a deficient number, since it is larger than the sum of its proper divisors (2314443).

4418421 is a wasteful number, since it uses less digits than its factorization.

4418421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210411.

The product of its digits is 1024, while the sum is 24.

The square root of 4418421 is about 2102.0040437640. The cubic root of 4418421 is about 164.0926132661.

The spelling of 4418421 in words is "four million, four hundred eighteen thousand, four hundred twenty-one".