1042439 has 2 divisors, whose sum is σ = 1042440. Its totient is φ = 1042438.

The previous prime is 1042427. The next prime is 1042451. The reversal of 1042439 is 9342401.

It is a balanced prime because it is at equal distance from previous prime (1042427) and next prime (1042451).

It is a cyclic number.

It is not a de Polignac number, because 1042439 - 2⁸ = 1042183 is a prime.

It is a Chen prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521219 + 521220.

It is an arithmetic number, because the mean of its divisors is an integer number (521220).

2^1042439 is an apocalyptic number.

1042439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042439 is an equidigital number, since it uses as much as digits as its factorization.

1042439 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 1042439 is about 1020.9990205676. Note that the first 3 decimals coincide. The cubic root of 1042439 is about 101.3950803361.

The spelling of 1042439 in words is "one million, forty-two thousand, four hundred thirty-nine".