40727243 has 2 divisors, whose sum is σ = 40727244. Its totient is φ = 40727242.

The previous prime is 40727237. The next prime is 40727261. The reversal of 40727243 is 34272704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40727243 - 2¹² = 40723147 is a prime.

It is not a weakly prime, because it can be changed into another prime (40727263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20363621 + 20363622.

It is an arithmetic number, because the mean of its divisors is an integer number (20363622).

Almost surely, 2^40727243 is an apocalyptic number.

40727243 is a deficient number, since it is larger than the sum of its proper divisors (1).

40727243 is an equidigital number, since it uses as much as digits as its factorization.

40727243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 40727243 is about 6381.7899526700. The cubic root of 40727243 is about 344.0553673049.

Adding to 40727243 its reverse (34272704), we get a palindrome (74999947).

The spelling of 40727243 in words is "forty million, seven hundred twenty-seven thousand, two hundred forty-three".