1143797760 has 480 divisors, whose sum is σ = 4709184480. Its totient is φ = 260112384.

The previous prime is 1143797749. The next prime is 1143797771. The reversal of 1143797760 is 677973411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1143797749) and next prime (1143797771).

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5805982 + ... + 5806178.

It is an arithmetic number, because the mean of its divisors is an integer number (9810801).

Almost surely, 2^1143797760 is an apocalyptic number.

1143797760 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 1143797760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354592240).

1143797760 is an abundant number, since it is smaller than the sum of its proper divisors (3565386720).

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

1143797760 is an equidigital number, since it uses as much as digits as its factorization.

1143797760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 1143797760 is about 33820.0792429586. The cubic root of 1143797760 is about 1045.8026723003.

The spelling of 1143797760 in words is "one billion, one hundred forty-three million, seven hundred ninety-seven thousand, seven hundred sixty".