400032323 has 2 divisors, whose sum is σ = 400032324. Its totient is φ = 400032322.

The previous prime is 400032239. The next prime is 400032329. The reversal of 400032323 is 323230004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400032323 - 2⁸ = 400032067 is a prime.

It is not a weakly prime, because it can be changed into another prime (400032329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200016161 + 200016162.

It is an arithmetic number, because the mean of its divisors is an integer number (200016162).

Almost surely, 2^400032323 is an apocalyptic number.

400032323 is a deficient number, since it is larger than the sum of its proper divisors (1).

400032323 is an equidigital number, since it uses as much as digits as its factorization.

400032323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 400032323 is about 20000.8080586760. The cubic root of 400032323 is about 736.8261456852.

Adding to 400032323 its reverse (323230004), we get a palindrome (723262327).

The spelling of 400032323 in words is "four hundred million, thirty-two thousand, three hundred twenty-three".