1143708930 has 128 divisors (see below), whose sum is σ = 3753792000. Its totient is φ = 241304832.

The previous prime is 1143708893. The next prime is 1143708997. The reversal of 1143708930 is 398073411.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1296 + ... + 47844.

It is an arithmetic number, because the mean of its divisors is an integer number (29326500).

Almost surely, 2^1143708930 is an apocalyptic number.

1143708930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143708930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1876896000).

1143708930 is an abundant number, since it is smaller than the sum of its proper divisors (2610083070).

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

1143708930 is a wasteful number, since it uses less digits than its factorization.

1143708930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46585 (or 46579 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1143708930 is about 33818.7659443688. The cubic root of 1143708930 is about 1045.7755984417.

The spelling of 1143708930 in words is "one billion, one hundred forty-three million, seven hundred eight thousand, nine hundred thirty".