1143013680 has 320 divisors, whose sum is σ = 4099737600. Its totient is φ = 296172288.

The previous prime is 1143013661. The next prime is 1143013687. The reversal of 1143013680 is 863103411.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1143013687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8223051 + ... + 8223189.

It is an arithmetic number, because the mean of its divisors is an integer number (12811680).

Almost surely, 2^1143013680 is an apocalyptic number.

1143013680 is a gapful number since it is divisible by the number (10) 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 1143013680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049868800).

1143013680 is an abundant number, since it is smaller than the sum of its proper divisors (2956723920).

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

1143013680 is an equidigital number, since it uses as much as digits as its factorization.

1143013680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1143013680 is about 33808.4853254327. The cubic root of 1143013680 is about 1045.5636497419.

The spelling of 1143013680 in words is "one billion, one hundred forty-three million, thirteen thousand, six hundred eighty".