40324231 has 2 divisors, whose sum is σ = 40324232. Its totient is φ = 40324230.

The previous prime is 40324217. The next prime is 40324243. The reversal of 40324231 is 13242304.

40324231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40324231 - 2¹³ = 40316039 is a prime.

It is a super-2 number, since 2×40324231² = 3252087211482722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40324199 and 40324208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40324201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20162115 + 20162116.

It is an arithmetic number, because the mean of its divisors is an integer number (20162116).

Almost surely, 2^40324231 is an apocalyptic number.

40324231 is a deficient number, since it is larger than the sum of its proper divisors (1).

40324231 is an equidigital number, since it uses as much as digits as its factorization.

40324231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 40324231 is about 6350.1362977498. The cubic root of 40324231 is about 342.9167491688.

Adding to 40324231 its reverse (13242304), we get a palindrome (53566535).

The spelling of 40324231 in words is "forty million, three hundred twenty-four thousand, two hundred thirty-one".