40306241 has 2 divisors, whose sum is σ = 40306242. Its totient is φ = 40306240.

The previous prime is 40306237. The next prime is 40306249. The reversal of 40306241 is 14260304.

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 + 250000 = 6329^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 40306241 - 2² = 40306237 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40306249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20153120 + 20153121.

It is an arithmetic number, because the mean of its divisors is an integer number (20153121).

Almost surely, 2^40306241 is an apocalyptic number.

It is an amenable number.

40306241 is a deficient number, since it is larger than the sum of its proper divisors (1).

40306241 is an equidigital number, since it uses as much as digits as its factorization.

40306241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40306241 is about 6348.7196346980. The cubic root of 40306241 is about 342.8657460060.

Adding to 40306241 its reverse (14260304), we get a palindrome (54566545).

The spelling of 40306241 in words is "forty million, three hundred six thousand, two hundred forty-one".