40845331 has 2 divisors, whose sum is σ = 40845332. Its totient is φ = 40845330.

The previous prime is 40845293. The next prime is 40845353. The reversal of 40845331 is 13354804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40845331 - 2⁹ = 40844819 is a prime.

It is a super-2 number, since 2×40845331² = 3336682128999122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40845331.

It is not a weakly prime, because it can be changed into another prime (40845131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20422665 + 20422666.

It is an arithmetic number, because the mean of its divisors is an integer number (20422666).

Almost surely, 2^40845331 is an apocalyptic number.

40845331 is a deficient number, since it is larger than the sum of its proper divisors (1).

40845331 is an equidigital number, since it uses as much as digits as its factorization.

40845331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40845331 is about 6391.0352056611. The cubic root of 40845331 is about 344.3875741426.

The spelling of 40845331 in words is "forty million, eight hundred forty-five thousand, three hundred thirty-one".