1143378600 has 384 divisors, whose sum is σ = 4473047040. Its totient is φ = 235146240.

The previous prime is 1143378559. The next prime is 1143378601. The reversal of 1143378600 is 68733411.

It is not an unprimeable number, because it can be changed into a prime (1143378601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2347557 + ... + 2348043.

It is an arithmetic number, because the mean of its divisors is an integer number (11648560).

Almost surely, 2^1143378600 is an apocalyptic number.

1143378600 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 1143378600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2236523520).

1143378600 is an abundant number, since it is smaller than the sum of its proper divisors (3329668440).

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

1143378600 is a wasteful number, since it uses less digits than its factorization.

1143378600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1143378600 is about 33813.8817647427. The cubic root of 1143378600 is about 1045.6749072292.

The spelling of 1143378600 in words is "one billion, one hundred forty-three million, three hundred seventy-eight thousand, six hundred".