1143304064 has 64 divisors (see below), whose sum is σ = 2656284000. Its totient is φ = 489968640.

The previous prime is 1143304039. The next prime is 1143304073. The reversal of 1143304064 is 4604033411.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30884 + ... + 56924.

Almost surely, 2^1143304064 is an apocalyptic number.

1143304064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143304064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328142000).

1143304064 is an abundant number, since it is smaller than the sum of its proper divisors (1512979936).

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

1143304064 is an frugal number, since it uses more digits than its factorization.

1143304064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26076 (or 26050 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1143304064 is about 33812.7795958865. The cubic root of 1143304064 is about 1045.6521844791.

Adding to 1143304064 its reverse (4604033411), we get a palindrome (5747337475).

The spelling of 1143304064 in words is "one billion, one hundred forty-three million, three hundred four thousand, sixty-four".