544004423 has 4 divisors (see below), whose sum is σ = 552123960. Its totient is φ = 535884888.

The previous prime is 544004413. The next prime is 544004429. The reversal of 544004423 is 324400445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324400445 = 5 ⋅64880089.

It is a cyclic number.

It is not a de Polignac number, because 544004423 - 2⁴ = 544004407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 544004392 and 544004401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544004429) 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, 4059668 + ... + 4059801.

It is an arithmetic number, because the mean of its divisors is an integer number (138030990).

Almost surely, 2^544004423 is an apocalyptic number.

544004423 is a deficient number, since it is larger than the sum of its proper divisors (8119537).

544004423 is an equidigital number, since it uses as much as digits as its factorization.

544004423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8119536.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 544004423 is about 23323.9023964687. The cubic root of 544004423 is about 816.3332327746. Note that the first 3 decimals are identical.

Adding to 544004423 its reverse (324400445), we get a palindrome (868404868).

It can be divided in two parts, 54400442 and 3, that added together give a palindrome (54400445).

The spelling of 544004423 in words is "five hundred forty-four million, four thousand, four hundred twenty-three".