40045241 has 2 divisors, whose sum is σ = 40045242. Its totient is φ = 40045240.

The previous prime is 40045199. The next prime is 40045253. The reversal of 40045241 is 14254004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39438400 + 606841 = 6280^2 + 779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40045241 is a prime.

It is not a weakly prime, because it can be changed into another prime (40045441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20022620 + 20022621.

It is an arithmetic number, because the mean of its divisors is an integer number (20022621).

Almost surely, 2^40045241 is an apocalyptic number.

It is an amenable number.

40045241 is a deficient number, since it is larger than the sum of its proper divisors (1).

40045241 is an equidigital number, since it uses as much as digits as its factorization.

40045241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 40045241 is about 6328.1309246886. The cubic root of 40045241 is about 342.1240757926.

Adding to 40045241 its reverse (14254004), we get a palindrome (54299245).

The spelling of 40045241 in words is "forty million, forty-five thousand, two hundred forty-one".