4454421 has 16 divisors (see below), whose sum is σ = 6187008. Its totient is φ = 2847600.

The previous prime is 4454407. The next prime is 4454423. The reversal of 4454421 is 1244544.

It is a happy number.

It is not a de Polignac number, because 4454421 - 2⁷ = 4454293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4454391 and 4454400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4454423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19510 + ... + 19736.

It is an arithmetic number, because the mean of its divisors is an integer number (386688).

Almost surely, 2^4454421 is an apocalyptic number.

It is an amenable number.

4454421 is a deficient number, since it is larger than the sum of its proper divisors (1732587).

4454421 is a wasteful number, since it uses less digits than its factorization.

4454421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

The product of its digits is 2560, while the sum is 24.

The square root of 4454421 is about 2110.5499283362. The cubic root of 4454421 is about 164.5370678624.

Adding to 4454421 its reverse (1244544), we get a palindrome (5698965).

The spelling of 4454421 in words is "four million, four hundred fifty-four thousand, four hundred twenty-one".