1144663242 has 32 divisors (see below), whose sum is σ = 2327023104. Its totient is φ = 375289200.

The previous prime is 1144663217. The next prime is 1144663249. The reversal of 1144663242 is 2423664411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1144663249) 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 15 ways as a sum of consecutive naturals, for example, 324267 + ... + 327777.

It is an arithmetic number, because the mean of its divisors is an integer number (72719472).

Almost surely, 2^1144663242 is an apocalyptic number.

1144663242 is an abundant number, since it is smaller than the sum of its proper divisors (1182359862).

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

1144663242 is a wasteful number, since it uses less digits than its factorization.

1144663242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394.

The product of its digits is 27648, while the sum is 33.

The square root of 1144663242 is about 33832.8722103223. The cubic root of 1144663242 is about 1046.0663830196.

The spelling of 1144663242 in words is "one billion, one hundred forty-four million, six hundred sixty-three thousand, two hundred forty-two".