2040513945 has 16 divisors (see below), whose sum is σ = 3296522112. Its totient is φ = 1077707520.

The previous prime is 2040513907. The next prime is 2040513967. The reversal of 2040513945 is 5493150402.

It is not a de Polignac number, because 2040513945 - 2¹⁴ = 2040497561 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 658816 + ... + 661905.

It is an arithmetic number, because the mean of its divisors is an integer number (206032632).

Almost surely, 2^2040513945 is an apocalyptic number.

It is an amenable number.

2040513945 is a deficient number, since it is larger than the sum of its proper divisors (1256008167).

2040513945 is a wasteful number, since it uses less digits than its factorization.

2040513945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320832.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2040513945 is about 45172.0482710271. The cubic root of 2040513945 is about 1268.3716384295.

The spelling of 2040513945 in words is "two billion, forty million, five hundred thirteen thousand, nine hundred forty-five".