400304323 has 8 divisors (see below), whose sum is σ = 403660800. Its totient is φ = 396960648.

The previous prime is 400304237. The next prime is 400304327. The reversal of 400304323 is 323403004.

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-400304323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400304323.

It is not an unprimeable number, because it can be changed into a prime (400304327) 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, 65638 + ... + 71476.

It is an arithmetic number, because the mean of its divisors is an integer number (50457600).

Almost surely, 2^400304323 is an apocalyptic number.

400304323 is a deficient number, since it is larger than the sum of its proper divisors (3356477).

400304323 is a wasteful number, since it uses less digits than its factorization.

400304323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6401.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 400304323 is about 20007.6066284801. The cubic root of 400304323 is about 736.9931082806.

Adding to 400304323 its reverse (323403004), we get a palindrome (723707327).

The spelling of 400304323 in words is "four hundred million, three hundred four thousand, three hundred twenty-three".