2042745057 has 24 divisors (see below), whose sum is σ = 3060653024. Its totient is φ = 1311920064.

The previous prime is 2042745053. The next prime is 2042745059. The reversal of 2042745057 is 7505472402.

It is a happy number.

It is not a de Polignac number, because 2042745057 - 2² = 2042745053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042745053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7903 + ... + 64404.

Almost surely, 2^2042745057 is an apocalyptic number.

It is an amenable number.

2042745057 is a deficient number, since it is larger than the sum of its proper divisors (1017907967).

2042745057 is a wasteful number, since it uses less digits than its factorization.

2042745057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72429 (or 72426 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 2042745057 is about 45196.7372384335. The cubic root of 2042745057 is about 1268.8337521391.

The spelling of 2042745057 in words is "two billion, forty-two million, seven hundred forty-five thousand, fifty-seven".