104040439 has 2 divisors, whose sum is σ = 104040440. Its totient is φ = 104040438.

The previous prime is 104040401. The next prime is 104040449. The reversal of 104040439 is 934040401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104040439 - 2⁷ = 104040311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104040449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52020219 + 52020220.

It is an arithmetic number, because the mean of its divisors is an integer number (52020220).

Almost surely, 2^104040439 is an apocalyptic number.

104040439 is a deficient number, since it is larger than the sum of its proper divisors (1).

104040439 is an equidigital number, since it uses as much as digits as its factorization.

104040439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 104040439 is about 10200.0215195851. The cubic root of 104040439 is about 470.3278819684.

The spelling of 104040439 in words is "one hundred four million, forty thousand, four hundred thirty-nine".