544332409 has 2 divisors, whose sum is σ = 544332410. Its totient is φ = 544332408.

The previous prime is 544332403. The next prime is 544332431. The reversal of 544332409 is 904233445.

It is a happy number.

544332409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401601600 + 142730809 = 20040^2 + 11947^2 .

It is a cyclic number.

It is not a de Polignac number, because 544332409 - 2²¹ = 542235257 is a prime.

It is not a weakly prime, because it can be changed into another prime (544332403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272166204 + 272166205.

It is an arithmetic number, because the mean of its divisors is an integer number (272166205).

Almost surely, 2^544332409 is an apocalyptic number.

It is an amenable number.

544332409 is a deficient number, since it is larger than the sum of its proper divisors (1).

544332409 is an equidigital number, since it uses as much as digits as its factorization.

544332409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 544332409 is about 23330.9324502901. The cubic root of 544332409 is about 816.4972584513.

The spelling of 544332409 in words is "five hundred forty-four million, three hundred thirty-two thousand, four hundred nine".