1140445200 has 120 divisors (see below), whose sum is σ = 3687164800. Its totient is φ = 301294080.

The previous prime is 1140445193. The next prime is 1140445247. The reversal of 1140445200 is 25440411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

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, 126441 + ... + 135159.

Almost surely, 2^1140445200 is an apocalyptic number.

1140445200 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 1140445200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1843582400).

1140445200 is an abundant number, since it is smaller than the sum of its proper divisors (2546719600).

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

1140445200 is a wasteful number, since it uses less digits than its factorization.

1140445200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8849 (or 8838 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1140445200 is about 33770.4782317337. The cubic root of 1140445200 is about 1044.7798961053.

Adding to 1140445200 its reverse (25440411), we get a palindrome (1165885611).

The spelling of 1140445200 in words is "one billion, one hundred forty million, four hundred forty-five thousand, two hundred".