40002023 has 2 divisors, whose sum is σ = 40002024. Its totient is φ = 40002022.

The previous prime is 40001999. The next prime is 40002041. The reversal of 40002023 is 32020004.

40002023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40002023 - 2¹² = 39997927 is a prime.

It is a super-3 number, since 3×40002023³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40001995 and 40002013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40002043) 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, 20001011 + 20001012.

It is an arithmetic number, because the mean of its divisors is an integer number (20001012).

Almost surely, 2^40002023 is an apocalyptic number.

40002023 is a deficient number, since it is larger than the sum of its proper divisors (1).

40002023 is an equidigital number, since it uses as much as digits as its factorization.

40002023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 40002023 is about 6324.7152505073. The cubic root of 40002023 is about 342.0009547070. Note that the first 3 decimals are identical.

Adding to 40002023 its reverse (32020004), we get a palindrome (72022027).

The spelling of 40002023 in words is "forty million, two thousand, twenty-three".