1144214500 has 144 divisors (see below), whose sum is σ = 2954375424. Its totient is φ = 383760000.

The previous prime is 1144214497. The next prime is 1144214521. The reversal of 1144214500 is 54124411.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 928885 + ... + 930115.

It is an arithmetic number, because the mean of its divisors is an integer number (20516496).

Almost surely, 2^1144214500 is an apocalyptic number.

1144214500 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 1144214500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477187712).

1144214500 is an abundant number, since it is smaller than the sum of its proper divisors (1810160924).

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

1144214500 is a wasteful number, since it uses less digits than its factorization.

1144214500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1144214500 is about 33826.2398146764. The cubic root of 1144214500 is about 1045.9296687854.

Adding to 1144214500 its reverse (54124411), we get a palindrome (1198338911).

The spelling of 1144214500 in words is "one billion, one hundred forty-four million, two hundred fourteen thousand, five hundred".