544442939 has 2 divisors, whose sum is σ = 544442940. Its totient is φ = 544442938.

The previous prime is 544442933. The next prime is 544442947. The reversal of 544442939 is 939244445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 544442939 - 2⁴ = 544442923 is a prime.

It is a super-2 number, since 2×544442939² = 592836227653915442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 544442939.

It is not a weakly prime, because it can be changed into another prime (544442933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272221469 + 272221470.

It is an arithmetic number, because the mean of its divisors is an integer number (272221470).

Almost surely, 2^544442939 is an apocalyptic number.

544442939 is a deficient number, since it is larger than the sum of its proper divisors (1).

544442939 is an equidigital number, since it uses as much as digits as its factorization.

544442939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 44.

The square root of 544442939 is about 23333.3010737872. The cubic root of 544442939 is about 816.5525196193.

The spelling of 544442939 in words is "five hundred forty-four million, four hundred forty-two thousand, nine hundred thirty-nine".