40205041 has 2 divisors, whose sum is σ = 40205042. Its totient is φ = 40205040.

The previous prime is 40205029. The next prime is 40205059. The reversal of 40205041 is 14050204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39955041 + 250000 = 6321^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 40205041 - 2¹⁵ = 40172273 is a prime.

It is not a weakly prime, because it can be changed into another prime (40205141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20102520 + 20102521.

It is an arithmetic number, because the mean of its divisors is an integer number (20102521).

Almost surely, 2^40205041 is an apocalyptic number.

It is an amenable number.

40205041 is a deficient number, since it is larger than the sum of its proper divisors (1).

40205041 is an equidigital number, since it uses as much as digits as its factorization.

40205041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40205041 is about 6340.7445146449. The cubic root of 40205041 is about 342.5785523203.

Adding to 40205041 its reverse (14050204), we get a palindrome (54255245).

The spelling of 40205041 in words is "forty million, two hundred five thousand, forty-one".