1040544403 has 4 divisors (see below), whose sum is σ = 1085785488. Its totient is φ = 995303320.

The previous prime is 1040544383. The next prime is 1040544437. The reversal of 1040544403 is 3044450401.

1040544403 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.

It is a cyclic number.

It is not a de Polignac number, because 1040544403 - 2⁹ = 1040543891 is a prime.

It is a super-2 number, since 2×1040544403² = 2165465309229252818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040544493) 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, 22620508 + ... + 22620553.

It is an arithmetic number, because the mean of its divisors is an integer number (271446372).

Almost surely, 2^1040544403 is an apocalyptic number.

1040544403 is a deficient number, since it is larger than the sum of its proper divisors (45241085).

1040544403 is an equidigital number, since it uses as much as digits as its factorization.

1040544403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45241084.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1040544403 is about 32257.4704990952. The cubic root of 1040544403 is about 1013.3361572833.

Adding to 1040544403 its reverse (3044450401), we get a palindrome (4084994804).

The spelling of 1040544403 in words is "one billion, forty million, five hundred forty-four thousand, four hundred three".