40343410321 has 8 divisors (see below), whose sum is σ = 40459438184. Its totient is φ = 40227425280.

The previous prime is 40343410319. The next prime is 40343410397. The reversal of 40343410321 is 12301434304.

It can be written as a sum of positive squares in 4 ways, for example, as 1386519696 + 38956890625 = 37236^2 + 197375^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40343410321 - 2¹ = 40343410319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40343411321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3328945 + ... + 3341041.

It is an arithmetic number, because the mean of its divisors is an integer number (5057429773).

Almost surely, 2^40343410321 is an apocalyptic number.

It is an amenable number.

40343410321 is a deficient number, since it is larger than the sum of its proper divisors (116027863).

40343410321 is a wasteful number, since it uses less digits than its factorization.

40343410321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21411.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 40343410321 its reverse (12301434304), we get a palindrome (52644844625).

The spelling of 40343410321 in words is "forty billion, three hundred forty-three million, four hundred ten thousand, three hundred twenty-one".