1144817622 has 96 divisors (see below), whose sum is σ = 2739303840. Its totient is φ = 343388160.

The previous prime is 1144817603. The next prime is 1144817627. The reversal of 1144817622 is 2267184411.

It is a happy number.

1144817622 is a `hidden beast` number, since 1 + 14 + 4 + 8 + 17 + 622 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144817627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1983798 + ... + 1984374.

It is an arithmetic number, because the mean of its divisors is an integer number (28534415).

Almost surely, 2^1144817622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144817622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1369651920).

1144817622 is an abundant number, since it is smaller than the sum of its proper divisors (1594486218).

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

1144817622 is a wasteful number, since it uses less digits than its factorization.

1144817622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 795 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 1144817622 is about 33835.1536423289. The cubic root of 1144817622 is about 1046.1134083404.

The spelling of 1144817622 in words is "one billion, one hundred forty-four million, eight hundred seventeen thousand, six hundred twenty-two".