40013345244 has 12 divisors (see below), whose sum is σ = 93364472264. Its totient is φ = 13337781744.

The previous prime is 40013345243. The next prime is 40013345257. The reversal of 40013345244 is 44254331004.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013345243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667222707 + ... + 1667222730.

Almost surely, 2^40013345244 is an apocalyptic number.

It is an amenable number.

40013345244 is an abundant number, since it is smaller than the sum of its proper divisors (53351127020).

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

40013345244 is a wasteful number, since it uses less digits than its factorization.

40013345244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334445444 (or 3334445442 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 40013345244 its reverse (44254331004), we get a palindrome (84267676248).

The spelling of 40013345244 in words is "forty billion, thirteen million, three hundred forty-five thousand, two hundred forty-four".