1004401143 has 24 divisors (see below), whose sum is σ = 1465423232. Its totient is φ = 662888448.

The previous prime is 1004401129. The next prime is 1004401159. The reversal of 1004401143 is 3411044001.

It is not a de Polignac number, because 1004401143 - 2¹² = 1004397047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004401163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386055 + ... + 388647.

Almost surely, 2^1004401143 is an apocalyptic number.

1004401143 is a deficient number, since it is larger than the sum of its proper divisors (461022089).

1004401143 is a wasteful number, since it uses less digits than its factorization.

1004401143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015 (or 3012 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1004401143 is about 31692.2883837693. The cubic root of 1004401143 is about 1001.4649006848.

Adding to 1004401143 its reverse (3411044001), we get a palindrome (4415445144).

The spelling of 1004401143 in words is "one billion, four million, four hundred one thousand, one hundred forty-three".