1042428039 has 4 divisors (see below), whose sum is σ = 1389904056. Its totient is φ = 694952024.

The previous prime is 1042428031. The next prime is 1042428043. The reversal of 1042428039 is 9308242401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1042428039 - 2³ = 1042428031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042428031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173738004 + ... + 173738009.

It is an arithmetic number, because the mean of its divisors is an integer number (347476014).

Almost surely, 2^1042428039 is an apocalyptic number.

1042428039 is a deficient number, since it is larger than the sum of its proper divisors (347476017).

1042428039 is an equidigital number, since it uses as much as digits as its factorization.

1042428039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347476016.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1042428039 is about 32286.6541933351. The cubic root of 1042428039 is about 1013.9472495307.

The spelling of 1042428039 in words is "one billion, forty-two million, four hundred twenty-eight thousand, thirty-nine".