400343302403 has 8 divisors (see below), whose sum is σ = 436804031280. Its totient is φ = 363893554080.

The previous prime is 400343302399. The next prime is 400343302409. The reversal of 400343302403 is 304203343004.

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 400343302403 - 2² = 400343302399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400343302409) 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, 2668808 + ... + 2814821.

It is an arithmetic number, because the mean of its divisors is an integer number (54600503910).

Almost surely, 2^400343302403 is an apocalyptic number.

400343302403 is a deficient number, since it is larger than the sum of its proper divisors (36460728877).

400343302403 is a wasteful number, since it uses less digits than its factorization.

400343302403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490277.

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 400343302403 its reverse (304203343004), we get a palindrome (704546645407).

The spelling of 400343302403 in words is "four hundred billion, three hundred forty-three million, three hundred two thousand, four hundred three".