40243311144 has 24 divisors (see below), whose sum is σ = 108992301210. Its totient is φ = 13414437024.

The previous prime is 40243311139. The next prime is 40243311169. The reversal of 40243311144 is 44111334204.

It can be written as a sum of positive squares in only one way, i.e., 34322008644 + 5921302500 = 185262^2 + 76950^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 279467367 + ... + 279467510.

Almost surely, 2^40243311144 is an apocalyptic number.

It is an amenable number.

40243311144 is an abundant number, since it is smaller than the sum of its proper divisors (68748990066).

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

40243311144 is a wasteful number, since it uses less digits than its factorization.

40243311144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558934889 (or 558934882 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 40243311144 its reverse (44111334204), we get a palindrome (84354645348).

The spelling of 40243311144 in words is "forty billion, two hundred forty-three million, three hundred eleven thousand, one hundred forty-four".