40430340343 has 16 divisors (see below), whose sum is σ = 42328440000. Its totient is φ = 38566547712.

The previous prime is 40430340319. The next prime is 40430340371. The reversal of 40430340343 is 34304303404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40430340343 - 2⁵ = 40430340311 is a prime.

It is a super-2 number, since 2×40430340343² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40430340943) 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 15 ways as a sum of consecutive naturals, for example, 3605221 + ... + 3616417.

It is an arithmetic number, because the mean of its divisors is an integer number (2645527500).

Almost surely, 2^40430340343 is an apocalyptic number.

40430340343 is a deficient number, since it is larger than the sum of its proper divisors (1898099657).

40430340343 is a wasteful number, since it uses less digits than its factorization.

40430340343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12714.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 40430340343 its reverse (34304303404), we get a palindrome (74734643747).

The spelling of 40430340343 in words is "forty billion, four hundred thirty million, three hundred forty thousand, three hundred forty-three".