544240369 has 2 divisors, whose sum is σ = 544240370. Its totient is φ = 544240368.

The previous prime is 544240327. The next prime is 544240373. The reversal of 544240369 is 963042445.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 321126400 + 223113969 = 17920^2 + 14937^2 .

It is a cyclic number.

It is not a de Polignac number, because 544240369 - 2⁷ = 544240241 is a prime.

It is a super-2 number, since 2×544240369² = 592395158498512322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (544240469) 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 as a sum of consecutive naturals, namely, 272120184 + 272120185.

It is an arithmetic number, because the mean of its divisors is an integer number (272120185).

Almost surely, 2^544240369 is an apocalyptic number.

It is an amenable number.

544240369 is a deficient number, since it is larger than the sum of its proper divisors (1).

544240369 is an equidigital number, since it uses as much as digits as its factorization.

544240369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 544240369 is about 23328.9598782286. The cubic root of 544240369 is about 816.4512359336.

The spelling of 544240369 in words is "five hundred forty-four million, two hundred forty thousand, three hundred sixty-nine".