40243643307346 has 8 divisors (see below), whose sum is σ = 60365507396940. Its totient is φ = 20121807508368.

The previous prime is 40243643307341. The next prime is 40243643307347. The reversal of 40243643307346 is 64370334634204.

It can be written as a sum of positive squares in 2 ways, for example, as 39962133476721 + 281509830625 = 6321561^2 + 530575^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40243643307346.

It is not an unprimeable number, because it can be changed into a prime (40243643307341) 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, 3061381 + ... + 9479416.

Almost surely, 2^{40243643307346} is an apocalyptic number.

40243643307346 is a deficient number, since it is larger than the sum of its proper divisors (20121864089594).

40243643307346 is a wasteful number, since it uses less digits than its factorization.

40243643307346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14145308.

The product of its (nonzero) digits is 10450944, while the sum is 49.

The spelling of 40243643307346 in words is "forty trillion, two hundred forty-three billion, six hundred forty-three million, three hundred seven thousand, three hundred forty-six".