40226239 has 2 divisors, whose sum is σ = 40226240. Its totient is φ = 40226238.

The previous prime is 40226237. The next prime is 40226279. The reversal of 40226239 is 93262204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40226239 - 2¹ = 40226237 is a prime.

Together with 40226237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40226231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20113119 + 20113120.

It is an arithmetic number, because the mean of its divisors is an integer number (20113120).

Almost surely, 2^40226239 is an apocalyptic number.

40226239 is a deficient number, since it is larger than the sum of its proper divisors (1).

40226239 is an equidigital number, since it uses as much as digits as its factorization.

40226239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 40226239 is about 6342.4158646371. The cubic root of 40226239 is about 342.6387496161.

The spelling of 40226239 in words is "forty million, two hundred twenty-six thousand, two hundred thirty-nine".