1144555244 has 12 divisors (see below), whose sum is σ = 2289110544. Its totient is φ = 490523664.

The previous prime is 1144555241. The next prime is 1144555259. The reversal of 1144555244 is 4425554411.

1144555244 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1144555241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20438459 + ... + 20438514.

It is an arithmetic number, because the mean of its divisors is an integer number (190759212).

Almost surely, 2^1144555244 is an apocalyptic number.

1144555244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1144555244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1144555244 is a wasteful number, since it uses less digits than its factorization.

1144555244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40876984 (or 40876982 counting only the distinct ones).

The product of its digits is 64000, while the sum is 35.

The square root of 1144555244 is about 33831.2761213644. The cubic root of 1144555244 is about 1046.0334834947.

The spelling of 1144555244 in words is "one billion, one hundred forty-four million, five hundred fifty-five thousand, two hundred forty-four".