1143821344 has 24 divisors (see below), whose sum is σ = 2256629760. Its totient is φ = 570709056.

The previous prime is 1143821323. The next prime is 1143821351. The reversal of 1143821344 is 4431283411.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21984 + ... + 52639.

It is an arithmetic number, because the mean of its divisors is an integer number (94026240).

Almost surely, 2^1143821344 is an apocalyptic number.

It is an amenable number.

1143821344 is a deficient number, since it is larger than the sum of its proper divisors (1112808416).

1143821344 is an equidigital number, since it uses as much as digits as its factorization.

1143821344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75112 (or 75104 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 1143821344 is about 33820.4279097707. The cubic root of 1143821344 is about 1045.8098600630.

The spelling of 1143821344 in words is "one billion, one hundred forty-three million, eight hundred twenty-one thousand, three hundred forty-four".