40323223 has 2 divisors, whose sum is σ = 40323224. Its totient is φ = 40323222.

The previous prime is 40323221. The next prime is 40323233. The reversal of 40323223 is 32232304.

40323223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40323223 - 2¹ = 40323221 is a prime.

Together with 40323221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40323223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40323221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161611 + 20161612.

It is an arithmetic number, because the mean of its divisors is an integer number (20161612).

Almost surely, 2^40323223 is an apocalyptic number.

40323223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40323223 is an equidigital number, since it uses as much as digits as its factorization.

40323223 is an odious number, because the sum of its binary digits is odd.

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

The square root of 40323223 is about 6350.0569288787. The cubic root of 40323223 is about 342.9138918053.

Adding to 40323223 its reverse (32232304), we get a palindrome (72555527).

The spelling of 40323223 in words is "forty million, three hundred twenty-three thousand, two hundred twenty-three".