1040544493 has 2 divisors, whose sum is σ = 1040544494. Its totient is φ = 1040544492.

The previous prime is 1040544437. The next prime is 1040544503. The reversal of 1040544493 is 3944450401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 880724329 + 159820164 = 29677^2 + 12642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040544493 - 2⁹ = 1040543981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040544293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520272246 + 520272247.

It is an arithmetic number, because the mean of its divisors is an integer number (520272247).

Almost surely, 2^1040544493 is an apocalyptic number.

It is an amenable number.

1040544493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040544493 is an equidigital number, since it uses as much as digits as its factorization.

1040544493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1040544493 is about 32257.4718941209. The cubic root of 1040544493 is about 1013.3361864989.

Adding to 1040544493 its reverse (3944450401), we get a palindrome (4984994894).

The spelling of 1040544493 in words is "one billion, forty million, five hundred forty-four thousand, four hundred ninety-three".