1144722120 has 128 divisors (see below), whose sum is σ = 3574333440. Its totient is φ = 292965120.

The previous prime is 1144722077. The next prime is 1144722181. The reversal of 1144722120 is 212274411.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471229 + ... + 473651.

It is an arithmetic number, because the mean of its divisors is an integer number (27924480).

Almost surely, 2^1144722120 is an apocalyptic number.

1144722120 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 1144722120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1787166720).

1144722120 is an abundant number, since it is smaller than the sum of its proper divisors (2429611320).

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

1144722120 is a wasteful number, since it uses less digits than its factorization.

1144722120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595 (or 2591 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 1144722120 is about 33833.7423292192. The cubic root of 1144722120 is about 1046.0843182044.

Adding to 1144722120 its reverse (212274411), we get a palindrome (1356996531).

The spelling of 1144722120 in words is "one billion, one hundred forty-four million, seven hundred twenty-two thousand, one hundred twenty".