120040439 has 2 divisors, whose sum is σ = 120040440. Its totient is φ = 120040438.

The previous prime is 120040433. The next prime is 120040457. The reversal of 120040439 is 934040021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120040439 - 2²⁰ = 118991863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120040433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60020219 + 60020220.

It is an arithmetic number, because the mean of its divisors is an integer number (60020220).

Almost surely, 2^120040439 is an apocalyptic number.

120040439 is a deficient number, since it is larger than the sum of its proper divisors (1).

120040439 is an equidigital number, since it uses as much as digits as its factorization.

120040439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 120040439 is about 10956.2967740017. The cubic root of 120040439 is about 493.2978148379.

The spelling of 120040439 in words is "one hundred twenty million, forty thousand, four hundred thirty-nine".