40412231 has 2 divisors, whose sum is σ = 40412232. Its totient is φ = 40412230.

The previous prime is 40412209. The next prime is 40412233. The reversal of 40412231 is 13221404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40412231 - 2¹⁸ = 40150087 is a prime.

It is a super-2 number, since 2×40412231² = 3266296828794722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 40412233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40412233) 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, 20206115 + 20206116.

It is an arithmetic number, because the mean of its divisors is an integer number (20206116).

Almost surely, 2^40412231 is an apocalyptic number.

40412231 is a deficient number, since it is larger than the sum of its proper divisors (1).

40412231 is an equidigital number, since it uses as much as digits as its factorization.

40412231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40412231 is about 6357.0615067026. The cubic root of 40412231 is about 343.1660182239.

Adding to 40412231 its reverse (13221404), we get a palindrome (53633635).

The spelling of 40412231 in words is "forty million, four hundred twelve thousand, two hundred thirty-one".