40241239 has 2 divisors, whose sum is σ = 40241240. Its totient is φ = 40241238.

The previous prime is 40241233. The next prime is 40241263. The reversal of 40241239 is 93214204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40241239 - 2⁵ = 40241207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40241233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20120619 + 20120620.

It is an arithmetic number, because the mean of its divisors is an integer number (20120620).

Almost surely, 2^40241239 is an apocalyptic number.

40241239 is a deficient number, since it is larger than the sum of its proper divisors (1).

40241239 is an equidigital number, since it uses as much as digits as its factorization.

40241239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 40241239 is about 6343.5982691214. The cubic root of 40241239 is about 342.6813332851.

The spelling of 40241239 in words is "forty million, two hundred forty-one thousand, two hundred thirty-nine".