1040445023 has 2 divisors, whose sum is σ = 1040445024. Its totient is φ = 1040445022.

The previous prime is 1040445019. The next prime is 1040445041. The reversal of 1040445023 is 3205440401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040445023 - 2² = 1040445019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040445023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040445013) 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 as a sum of consecutive naturals, namely, 520222511 + 520222512.

It is an arithmetic number, because the mean of its divisors is an integer number (520222512).

Almost surely, 2^1040445023 is an apocalyptic number.

1040445023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040445023 is an equidigital number, since it uses as much as digits as its factorization.

1040445023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1040445023 is about 32255.9300439470. The cubic root of 1040445023 is about 1013.3038957885.

Adding to 1040445023 its reverse (3205440401), we get a palindrome (4245885424).

The spelling of 1040445023 in words is "one billion, forty million, four hundred forty-five thousand, twenty-three".