40240163 has 2 divisors, whose sum is σ = 40240164. Its totient is φ = 40240162.

The previous prime is 40240129. The next prime is 40240169. The reversal of 40240163 is 36104204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40240163 - 2¹⁶ = 40174627 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (40240169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20120081 + 20120082.

It is an arithmetic number, because the mean of its divisors is an integer number (20120082).

Almost surely, 2^40240163 is an apocalyptic number.

40240163 is a deficient number, since it is larger than the sum of its proper divisors (1).

40240163 is an equidigital number, since it uses as much as digits as its factorization.

40240163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40240163 is about 6343.5134586442. The cubic root of 40240163 is about 342.6782789689.

Adding to 40240163 its reverse (36104204), we get a palindrome (76344367).

The spelling of 40240163 in words is "forty million, two hundred forty thousand, one hundred sixty-three".