1042434874009 has 3 divisors (see below), whose sum is σ = 1042435895007. Its totient is φ = 1042433853012.

The previous prime is 1042434874001. The next prime is 1042434874073. The reversal of 1042434874009 is 9004784342401.

The square root of 1042434874009 is 1020997.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1030559977225 + 11874896784 = 1015165^2 + 108972^2 .

It is not a de Polignac number, because 1042434874009 - 2³ = 1042434874001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042434874009.

It is not an unprimeable number, because it can be changed into a prime (1042434874001) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 510499 + ... + 1531495.

It is an arithmetic number, because the mean of its divisors is an integer number (347478631669).

Almost surely, 2^{1042434874009} is an apocalyptic number.

1042434874009 is the 1020997-th square number.

1042434874009 is the 510499-th centered octagonal number.

It is an amenable number.

1042434874009 is a deficient number, since it is larger than the sum of its proper divisors (1020998).

1042434874009 is an frugal number, since it uses more digits than its factorization.

1042434874009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041994 (or 1020997 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 1042434874009 in words is "one trillion, forty-two billion, four hundred thirty-four million, eight hundred seventy-four thousand, nine".