1144004043 has 32 divisors (see below), whose sum is σ = 1903813632. Its totient is φ = 594921600.

The previous prime is 1144004039. The next prime is 1144004047. The reversal of 1144004043 is 3404004411.

It is an interprime number because it is at equal distance from previous prime (1144004039) and next prime (1144004047).

It is not a de Polignac number, because 1144004043 - 2² = 1144004039 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 (1144004047) 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 31 ways as a sum of consecutive naturals, for example, 10128 + ... + 48893.

It is an arithmetic number, because the mean of its divisors is an integer number (59494176).

Almost surely, 2^1144004043 is an apocalyptic number.

1144004043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1144004043 is a deficient number, since it is larger than the sum of its proper divisors (759809589).

1144004043 is a wasteful number, since it uses less digits than its factorization.

1144004043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59115.

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

The square root of 1144004043 is about 33823.1288174231. The cubic root of 1144004043 is about 1045.8655384096.

Adding to 1144004043 its reverse (3404004411), we get a palindrome (4548008454).

The spelling of 1144004043 in words is "one billion, one hundred forty-four million, four thousand, forty-three".