40370023 has 2 divisors, whose sum is σ = 40370024. Its totient is φ = 40370022.

The previous prime is 40370021. The next prime is 40370051. The reversal of 40370023 is 32007304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40370023 - 2¹ = 40370021 is a prime.

Together with 40370021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40370021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20185011 + 20185012.

It is an arithmetic number, because the mean of its divisors is an integer number (20185012).

Almost surely, 2^40370023 is an apocalyptic number.

40370023 is a deficient number, since it is larger than the sum of its proper divisors (1).

40370023 is an equidigital number, since it uses as much as digits as its factorization.

40370023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 40370023 is about 6353.7408666076. The cubic root of 40370023 is about 343.0465049270.

Adding to 40370023 its reverse (32007304), we get a palindrome (72377327).

The spelling of 40370023 in words is "forty million, three hundred seventy thousand, twenty-three".