544004401 has 4 divisors (see below), whose sum is σ = 550116900. Its totient is φ = 537891904.

The previous prime is 544004393. The next prime is 544004407. The reversal of 544004401 is 104400445.

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 300675600 + 243328801 = 17340^2 + 15599^2 .

It is a cyclic number.

It is not a de Polignac number, because 544004401 - 2³ = 544004393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544004407) 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 3 ways as a sum of consecutive naturals, for example, 3056116 + ... + 3056293.

It is an arithmetic number, because the mean of its divisors is an integer number (137529225).

Almost surely, 2^544004401 is an apocalyptic number.

It is an amenable number.

544004401 is a deficient number, since it is larger than the sum of its proper divisors (6112499).

544004401 is an equidigital number, since it uses as much as digits as its factorization.

544004401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112498.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 544004401 is about 23323.9019248495. The cubic root of 544004401 is about 816.3332217702. Note that the first 3 decimals are identical.

Adding to 544004401 its reverse (104400445), we get a palindrome (648404846).

The spelling of 544004401 in words is "five hundred forty-four million, four thousand, four hundred one".