2044402003 has 4 divisors (see below), whose sum is σ = 2336459440. Its totient is φ = 1752344568.

The previous prime is 2044401991. The next prime is 2044402013. The reversal of 2044402003 is 3002044402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2044402003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2044402013) 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, 146028708 + ... + 146028721.

It is an arithmetic number, because the mean of its divisors is an integer number (584114860).

Almost surely, 2^2044402003 is an apocalyptic number.

2044402003 is a deficient number, since it is larger than the sum of its proper divisors (292057437).

2044402003 is an equidigital number, since it uses as much as digits as its factorization.

2044402003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292057436.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2044402003 is about 45215.0638946801. The cubic root of 2044402003 is about 1269.1767254040.

Adding to 2044402003 its reverse (3002044402), we get a palindrome (5046446405).

The spelling of 2044402003 in words is "two billion, forty-four million, four hundred two thousand, three".