4454021 has 8 divisors (see below), whose sum is σ = 5232864. Its totient is φ = 3737520.

The previous prime is 4454003. The next prime is 4454027. The reversal of 4454021 is 1204544.

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 4454021 - 2⁶ = 4453957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4453984 and 4454002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4454027) 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, 15431 + ... + 15716.

It is an arithmetic number, because the mean of its divisors is an integer number (654108).

Almost surely, 2^4454021 is an apocalyptic number.

It is an amenable number.

4454021 is a deficient number, since it is larger than the sum of its proper divisors (778843).

4454021 is a wasteful number, since it uses less digits than its factorization.

4454021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31171.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 4454021 is about 2110.4551641767. The cubic root of 4454021 is about 164.5321426583.

Adding to 4454021 its reverse (1204544), we get a palindrome (5658565).

The spelling of 4454021 in words is "four million, four hundred fifty-four thousand, twenty-one".