400343330443 has 8 divisors (see below), whose sum is σ = 465290069760. Its totient is φ = 337335299880.

The previous prime is 400343330357. The next prime is 400343330477. The reversal of 400343330443 is 344033343004.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400343330443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400343330743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484676743 + ... + 484677568.

It is an arithmetic number, because the mean of its divisors is an integer number (58161258720).

Almost surely, 2^400343330443 is an apocalyptic number.

400343330443 is a deficient number, since it is larger than the sum of its proper divisors (64946739317).

400343330443 is an equidigital number, since it uses as much as digits as its factorization.

400343330443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969354377.

The product of its (nonzero) digits is 62208, while the sum is 31.

Adding to 400343330443 its reverse (344033343004), we get a palindrome (744376673447).

The spelling of 400343330443 in words is "four hundred billion, three hundred forty-three million, three hundred thirty thousand, four hundred forty-three".