1144323140240 has 80 divisors (see below), whose sum is σ = 3043940056320. Its totient is φ = 391912266240.

The previous prime is 1144323140227. The next prime is 1144323140251. The reversal of 1144323140240 is 420413234411.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597131 + ... + 1626410.

It is an arithmetic number, because the mean of its divisors is an integer number (38049250704).

Almost surely, 2^{1144323140240} is an apocalyptic number.

1144323140240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144323140240 is an abundant number, since it is smaller than the sum of its proper divisors (1899616916080).

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

1144323140240 is a wasteful number, since it uses less digits than its factorization.

1144323140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224480 (or 2224474 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1144323140240 its reverse (420413234411), we get a palindrome (1564736374651).

The spelling of 1144323140240 in words is "one trillion, one hundred forty-four billion, three hundred twenty-three million, one hundred forty thousand, two hundred forty".