40401223 has 2 divisors, whose sum is σ = 40401224. Its totient is φ = 40401222.

The previous prime is 40401217. The next prime is 40401241. The reversal of 40401223 is 32210404.

40401223 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 40401223 - 2¹⁷ = 40270151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40401197 and 40401206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40401293) 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, 20200611 + 20200612.

It is an arithmetic number, because the mean of its divisors is an integer number (20200612).

Almost surely, 2^40401223 is an apocalyptic number.

40401223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40401223 is an equidigital number, since it uses as much as digits as its factorization.

40401223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40401223 is about 6356.1956389023. The cubic root of 40401223 is about 343.1348567456.

Adding to 40401223 its reverse (32210404), we get a palindrome (72611627).

The spelling of 40401223 in words is "forty million, four hundred one thousand, two hundred twenty-three".