1144421442 has 48 divisors (see below), whose sum is σ = 2594674368. Its totient is φ = 363860640.

The previous prime is 1144421401. The next prime is 1144421459. The reversal of 1144421442 is 2441244411.

It is a happy number.

1144421442 is a `hidden beast` number, since 1 + 1 + 444 + 214 + 4 + 2 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 150717 + ... + 158127.

It is an arithmetic number, because the mean of its divisors is an integer number (54055716).

Almost surely, 2^1144421442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144421442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1297337184).

1144421442 is an abundant number, since it is smaller than the sum of its proper divisors (1450252926).

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

1144421442 is a wasteful number, since it uses less digits than its factorization.

1144421442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7815 (or 7812 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 1144421442 is about 33829.2985738694. The cubic root of 1144421442 is about 1045.9927204043.

Adding to 1144421442 its reverse (2441244411), we get a palindrome (3585665853).

The spelling of 1144421442 in words is "one billion, one hundred forty-four million, four hundred twenty-one thousand, four hundred forty-two".