40748923 has 2 divisors, whose sum is σ = 40748924. Its totient is φ = 40748922.

The previous prime is 40748921. The next prime is 40748941. The reversal of 40748923 is 32984704.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40748923 - 2¹ = 40748921 is a prime.

Together with 40748921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40748921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20374461 + 20374462.

It is an arithmetic number, because the mean of its divisors is an integer number (20374462).

Almost surely, 2^40748923 is an apocalyptic number.

40748923 is a deficient number, since it is larger than the sum of its proper divisors (1).

40748923 is an equidigital number, since it uses as much as digits as its factorization.

40748923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 40748923 is about 6383.4883096940. The cubic root of 40748923 is about 344.1164058683.

The spelling of 40748923 in words is "forty million, seven hundred forty-eight thousand, nine hundred twenty-three".