4454104021 has 4 divisors (see below), whose sum is σ = 4456730412. Its totient is φ = 4451477632.

The previous prime is 4454104009. The next prime is 4454104027. The reversal of 4454104021 is 1204014544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3475102500 + 979001521 = 58950^2 + 31289^2 .

It is a cyclic number.

It is not a de Polignac number, because 4454104021 - 2²³ = 4445715413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4454104027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310650 + ... + 1314043.

It is an arithmetic number, because the mean of its divisors is an integer number (1114182603).

Almost surely, 2^4454104021 is an apocalyptic number.

It is an amenable number.

4454104021 is a deficient number, since it is larger than the sum of its proper divisors (2626391).

4454104021 is a wasteful number, since it uses less digits than its factorization.

4454104021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626390.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4454104021 is about 66739.0741694849. The cubic root of 4454104021 is about 1645.3316492096.

Adding to 4454104021 its reverse (1204014544), we get a palindrome (5658118565).

The spelling of 4454104021 in words is "four billion, four hundred fifty-four million, one hundred four thousand, twenty-one".