1144625568 has 48 divisors (see below), whose sum is σ = 3032235360. Its totient is φ = 378038016.

The previous prime is 1144625551. The next prime is 1144625579. The reversal of 1144625568 is 8655264411.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44230 + ... + 65157.

It is an arithmetic number, because the mean of its divisors is an integer number (63171570).

Almost surely, 2^1144625568 is an apocalyptic number.

It is an amenable number.

1144625568 is an abundant number, since it is smaller than the sum of its proper divisors (1887609792).

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

1144625568 is a wasteful number, since it uses less digits than its factorization.

1144625568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109509 (or 109501 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 1144625568 is about 33832.3154395321. The cubic root of 1144625568 is about 1046.0549065911.

Adding to 1144625568 its reverse (8655264411), we get a palindrome (9799889979).

The spelling of 1144625568 in words is "one billion, one hundred forty-four million, six hundred twenty-five thousand, five hundred sixty-eight".