40066241 has 2 divisors, whose sum is σ = 40066242. Its totient is φ = 40066240.

The previous prime is 40066237. The next prime is 40066259. The reversal of 40066241 is 14266004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40056241 + 10000 = 6329^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 40066241 - 2² = 40066237 is a prime.

It is not a weakly prime, because it can be changed into another prime (40068241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20033120 + 20033121.

It is an arithmetic number, because the mean of its divisors is an integer number (20033121).

Almost surely, 2^40066241 is an apocalyptic number.

It is an amenable number.

40066241 is a deficient number, since it is larger than the sum of its proper divisors (1).

40066241 is an equidigital number, since it uses as much as digits as its factorization.

40066241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40066241 is about 6329.7899649198. The cubic root of 40066241 is about 342.1838694151.

The spelling of 40066241 in words is "forty million, sixty-six thousand, two hundred forty-one".