2040445513 has 4 divisors (see below), whose sum is σ = 2106266368. Its totient is φ = 1974624660.

The previous prime is 2040445507. The next prime is 2040445571. The reversal of 2040445513 is 3155440402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3155440402 = 2 ⋅1577720201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040445513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040445313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32910381 + ... + 32910442.

It is an arithmetic number, because the mean of its divisors is an integer number (526566592).

Almost surely, 2^2040445513 is an apocalyptic number.

It is an amenable number.

2040445513 is a deficient number, since it is larger than the sum of its proper divisors (65820855).

2040445513 is an equidigital number, since it uses as much as digits as its factorization.

2040445513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65820854.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2040445513 is about 45171.2908051120. The cubic root of 2040445513 is about 1268.3574592928.

Adding to 2040445513 its reverse (3155440402), we get a palindrome (5195885915).

The spelling of 2040445513 in words is "two billion, forty million, four hundred forty-five thousand, five hundred thirteen".