544540243 has 8 divisors (see below), whose sum is σ = 620923968. Its totient is φ = 473084544.

The previous prime is 544540193. The next prime is 544540291. The reversal of 544540243 is 342045445.

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 544540243 - 2¹⁷ = 544409171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544541243) 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, 1231771 + ... + 1232212.

It is an arithmetic number, because the mean of its divisors is an integer number (77615496).

Almost surely, 2^544540243 is an apocalyptic number.

544540243 is a deficient number, since it is larger than the sum of its proper divisors (76383725).

544540243 is a wasteful number, since it uses less digits than its factorization.

544540243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464013.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 544540243 is about 23335.3860692297. The cubic root of 544540243 is about 816.6011620560.

Adding to 544540243 its reverse (342045445), we get a palindrome (886585688).

It can be divided in two parts, 5445402 and 43, that added together give a palindrome (5445445).

The spelling of 544540243 in words is "five hundred forty-four million, five hundred forty thousand, two hundred forty-three".