40464023 has 2 divisors, whose sum is σ = 40464024. Its totient is φ = 40464022.

The previous prime is 40464013. The next prime is 40464031. The reversal of 40464023 is 32046404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40464023 - 2¹⁸ = 40201879 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40464023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40464013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20232011 + 20232012.

It is an arithmetic number, because the mean of its divisors is an integer number (20232012).

Almost surely, 2^40464023 is an apocalyptic number.

40464023 is a deficient number, since it is larger than the sum of its proper divisors (1).

40464023 is an equidigital number, since it uses as much as digits as its factorization.

40464023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 40464023 is about 6361.1337825894. The cubic root of 40464023 is about 343.3125552721.

The spelling of 40464023 in words is "forty million, four hundred sixty-four thousand, twenty-three".