1143004304 has 40 divisors (see below), whose sum is σ = 2391721920. Its totient is φ = 526036608.

The previous prime is 1143004277. The next prime is 1143004309. The reversal of 1143004304 is 4034003411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1143004309) 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, 67019 + ... + 82325.

It is an arithmetic number, because the mean of its divisors is an integer number (59793048).

Almost surely, 2^1143004304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143004304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1195860960).

1143004304 is an abundant number, since it is smaller than the sum of its proper divisors (1248717616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143004304 is a wasteful number, since it uses less digits than its factorization.

1143004304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15687 (or 15681 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1143004304 is about 33808.3466617343. The cubic root of 1143004304 is about 1045.5607908576.

Adding to 1143004304 its reverse (4034003411), we get a palindrome (5177007715).

The spelling of 1143004304 in words is "one billion, one hundred forty-three million, four thousand, three hundred four".