1144220000 has 240 divisors, whose sum is σ = 3514275072. Its totient is φ = 356160000.

The previous prime is 1144219991. The next prime is 1144220023. The reversal of 1144220000 is 224411.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1539629 + ... + 1540371.

Almost surely, 2^1144220000 is an apocalyptic number.

1144220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757137536).

1144220000 is an abundant number, since it is smaller than the sum of its proper divisors (2370055072).

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

1144220000 is an equidigital number, since it uses as much as digits as its factorization.

1144220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1144220000 is about 33826.3211124119. The cubic root of 1144220000 is about 1045.9313446378.

Adding to 1144220000 its reverse (224411), we get a palindrome (1144444411).

The spelling of 1144220000 in words is "one billion, one hundred forty-four million, two hundred twenty thousand".