1144023404 has 24 divisors (see below), whose sum is σ = 2090699520. Its totient is φ = 546719184.

The previous prime is 1144023401. The next prime is 1144023409. The reversal of 1144023404 is 4043204411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 1144023404.

It is not an unprimeable number, because it can be changed into a prime (1144023401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137927 + ... + 145985.

It is an arithmetic number, because the mean of its divisors is an integer number (87112480).

Almost surely, 2^1144023404 is an apocalyptic number.

It is an amenable number.

1144023404 is a deficient number, since it is larger than the sum of its proper divisors (946676116).

1144023404 is a wasteful number, since it uses less digits than its factorization.

1144023404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9629 (or 9627 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1144023404 is about 33823.4150256889. The cubic root of 1144023404 is about 1045.8714384145.

Adding to 1144023404 its reverse (4043204411), we get a palindrome (5187227815).

The spelling of 1144023404 in words is "one billion, one hundred forty-four million, twenty-three thousand, four hundred four".