40238041 has 2 divisors, whose sum is σ = 40238042. Its totient is φ = 40238040.

The previous prime is 40238039. The next prime is 40238047. The reversal of 40238041 is 14083204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29811600 + 10426441 = 5460^2 + 3229^2 .

It is a cyclic number.

It is not a de Polignac number, because 40238041 - 2¹ = 40238039 is a prime.

Together with 40238039, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40238047) 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, 20119020 + 20119021.

It is an arithmetic number, because the mean of its divisors is an integer number (20119021).

Almost surely, 2^40238041 is an apocalyptic number.

It is an amenable number.

40238041 is a deficient number, since it is larger than the sum of its proper divisors (1).

40238041 is an equidigital number, since it uses as much as digits as its factorization.

40238041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 40238041 is about 6343.3461989710. The cubic root of 40238041 is about 342.6722553345.

The spelling of 40238041 in words is "forty million, two hundred thirty-eight thousand, forty-one".