1144440003 has 16 divisors (see below), whose sum is σ = 1819731456. Its totient is φ = 625532160.

The previous prime is 1144439993. The next prime is 1144440019. The reversal of 1144440003 is 3000444411.

It is not a de Polignac number, because 1144440003 - 2¹⁴ = 1144423619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1144440043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1184238 + ... + 1185203.

It is an arithmetic number, because the mean of its divisors is an integer number (113733216).

Almost surely, 2^1144440003 is an apocalyptic number.

1144440003 is a deficient number, since it is larger than the sum of its proper divisors (675291453).

1144440003 is a wasteful number, since it uses less digits than its factorization.

1144440003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369474.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1144440003 is about 33829.5729059650. The cubic root of 1144440003 is about 1045.9983752459.

Adding to 1144440003 its reverse (3000444411), we get a palindrome (4144884414).

The spelling of 1144440003 in words is "one billion, one hundred forty-four million, four hundred forty thousand, three".