1143489024 has 240 divisors, whose sum is σ = 3510936000. Its totient is φ = 357654528.

The previous prime is 1143489007. The next prime is 1143489043. The reversal of 1143489024 is 4209843411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1143489024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5746077 + ... + 5746275.

It is an arithmetic number, because the mean of its divisors is an integer number (14628900).

Almost surely, 2^1143489024 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 1143489024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1755468000).

1143489024 is an abundant number, since it is smaller than the sum of its proper divisors (2367446976).

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

1143489024 is a wasteful number, since it uses less digits than its factorization.

1143489024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1143489024 is about 33815.5145458412. The cubic root of 1143489024 is about 1045.7085688378.

The spelling of 1143489024 in words is "one billion, one hundred forty-three million, four hundred eighty-nine thousand, twenty-four".