1033440013 has 6 divisors (see below), whose sum is σ = 1097806826. Its totient is φ = 972649152.

The previous prime is 1033439999. The next prime is 1033440029. The reversal of 1033440013 is 3100443301.

1033440013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 801852489 + 231587524 = 28317^2 + 15218^2 .

It is not a de Polignac number, because 1033440013 - 2⁹ = 1033439501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1033440043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1787670 + ... + 1788247.

Almost surely, 2^1033440013 is an apocalyptic number.

It is an amenable number.

1033440013 is a deficient number, since it is larger than the sum of its proper divisors (64366813).

1033440013 is an equidigital number, since it uses as much as digits as its factorization.

1033440013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575951 (or 3575934 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1033440013 is about 32147.1618187360. The cubic root of 1033440013 is about 1011.0246807545.

Adding to 1033440013 its reverse (3100443301), we get a palindrome (4133883314).

The spelling of 1033440013 in words is "one billion, thirty-three million, four hundred forty thousand, thirteen".