1144223442 has 16 divisors (see below), whose sum is σ = 2542718880. Its totient is φ = 381407796.

The previous prime is 1144223441. The next prime is 1144223473. The reversal of 1144223442 is 2443224411.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1144223441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10594608 + ... + 10594715.

It is an arithmetic number, because the mean of its divisors is an integer number (158919930).

Almost surely, 2^1144223442 is an apocalyptic number.

1144223442 is an abundant number, since it is smaller than the sum of its proper divisors (1398495438).

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

1144223442 is a wasteful number, since it uses less digits than its factorization.

1144223442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21189334 (or 21189328 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 1144223442 is about 33826.3719899134. The cubic root of 1144223442 is about 1045.9323934140.

Adding to 1144223442 its reverse (2443224411), we get a palindrome (3587447853).

The spelling of 1144223442 in words is "one billion, one hundred forty-four million, two hundred twenty-three thousand, four hundred forty-two".