40423001 has 2 divisors, whose sum is σ = 40423002. Its totient is φ = 40423000.

The previous prime is 40422989. The next prime is 40423057. The reversal of 40423001 is 10032404.

40423001 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 can be written as a sum of positive squares in only one way, i.e., 20611600 + 19811401 = 4540^2 + 4451^2 .

It is a cyclic number.

It is not a de Polignac number, because 40423001 - 2²² = 36228697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40423081) 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, 20211500 + 20211501.

It is an arithmetic number, because the mean of its divisors is an integer number (20211501).

Almost surely, 2^40423001 is an apocalyptic number.

It is an amenable number.

40423001 is a deficient number, since it is larger than the sum of its proper divisors (1).

40423001 is an equidigital number, since it uses as much as digits as its factorization.

40423001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40423001 is about 6357.9085397637. The cubic root of 40423001 is about 343.1965004950.

Adding to 40423001 its reverse (10032404), we get a palindrome (50455405).

The spelling of 40423001 in words is "forty million, four hundred twenty-three thousand, one".