1057004003449 has 3 divisors (see below), whose sum is σ = 1057005031557. Its totient is φ = 1057002975342.

The previous prime is 1057004003431. The next prime is 1057004003533. The reversal of 1057004003449 is 9443004007501.

The square root of 1057004003449 is 1028107.

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 is not a de Polignac number, because 1057004003449 - 2⁵ = 1057004003417 is a prime.

It is a super-2 number, since 2×1057004003449² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1057004006449) 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 in 2 ways as a sum of consecutive naturals, for example, 514054 + ... + 1542160.

It is an arithmetic number, because the mean of its divisors is an integer number (352335010519).

Almost surely, 2^{1057004003449} is an apocalyptic number.

1057004003449 is the 1028107-th square number.

1057004003449 is the 514054-th centered octagonal number.

It is an amenable number.

1057004003449 is a deficient number, since it is larger than the sum of its proper divisors (1028108).

1057004003449 is an frugal number, since it uses more digits than its factorization.

1057004003449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056214 (or 1028107 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 1057004003449 in words is "one trillion, fifty-seven billion, four million, three thousand, four hundred forty-nine".