4481421 has 16 divisors (see below), whose sum is σ = 7231104. Its totient is φ = 2409984.

The previous prime is 4481401. The next prime is 4481431. The reversal of 4481421 is 1241844.

It is not a de Polignac number, because 4481421 - 2⁷ = 4481293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4481391 and 4481400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4481401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5920 + ... + 6633.

It is an arithmetic number, because the mean of its divisors is an integer number (451944).

Almost surely, 2^4481421 is an apocalyptic number.

It is an amenable number.

4481421 is a deficient number, since it is larger than the sum of its proper divisors (2749683).

4481421 is a wasteful number, since it uses less digits than its factorization.

4481421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12580.

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

The square root of 4481421 is about 2116.9367019351. The cubic root of 4481421 is about 164.8688397523.

The spelling of 4481421 in words is "four million, four hundred eighty-one thousand, four hundred twenty-one".