1040443445 has 4 divisors (see below), whose sum is σ = 1248532140. Its totient is φ = 832354752.

The previous prime is 1040443423. The next prime is 1040443447. The reversal of 1040443445 is 5443440401.

1040443445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5443440401 = 7 ⋅777634343.

It can be written as a sum of positive squares in 2 ways, for example, as 257730916 + 782712529 = 16054^2 + 27977^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040443445 - 2¹⁶ = 1040377909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040443447) 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, 104044340 + ... + 104044349.

It is an arithmetic number, because the mean of its divisors is an integer number (312133035).

Almost surely, 2^1040443445 is an apocalyptic number.

It is an amenable number.

1040443445 is a deficient number, since it is larger than the sum of its proper divisors (208088695).

1040443445 is an equidigital number, since it uses as much as digits as its factorization.

1040443445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208088694.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 1040443445 is about 32255.9055833192. The cubic root of 1040443445 is about 1013.3033835095.

Adding to 1040443445 its reverse (5443440401), we get a palindrome (6483883846).

The spelling of 1040443445 in words is "one billion, forty million, four hundred forty-three thousand, four hundred forty-five".