544742421 has 4 divisors (see below), whose sum is σ = 726323232. Its totient is φ = 363161612.

The previous prime is 544742413. The next prime is 544742431. The reversal of 544742421 is 124247445.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 544742421 - 2³ = 544742413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544742431) 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 3 ways as a sum of consecutive naturals, for example, 90790401 + ... + 90790406.

It is an arithmetic number, because the mean of its divisors is an integer number (181580808).

Almost surely, 2^544742421 is an apocalyptic number.

It is an amenable number.

544742421 is a deficient number, since it is larger than the sum of its proper divisors (181580811).

544742421 is a wasteful number, since it uses less digits than its factorization.

544742421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181580810.

The product of its digits is 35840, while the sum is 33.

The square root of 544742421 is about 23339.7176718143. The cubic root of 544742421 is about 816.7022126599.

Adding to 544742421 its reverse (124247445), we get a palindrome (668989866).

It can be divided in two parts, 5447424 and 21, that added together give a palindrome (5447445).

The spelling of 544742421 in words is "five hundred forty-four million, seven hundred forty-two thousand, four hundred twenty-one".