40363231 has 2 divisors, whose sum is σ = 40363232. Its totient is φ = 40363230.

The previous prime is 40363207. The next prime is 40363243. The reversal of 40363231 is 13236304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40363231 - 2¹¹ = 40361183 is a prime.

It is a super-2 number, since 2×40363231² = 3258380833518722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40363291) 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, 20181615 + 20181616.

It is an arithmetic number, because the mean of its divisors is an integer number (20181616).

Almost surely, 2^40363231 is an apocalyptic number.

40363231 is a deficient number, since it is larger than the sum of its proper divisors (1).

40363231 is an equidigital number, since it uses as much as digits as its factorization.

40363231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 40363231 is about 6353.2063558490. The cubic root of 40363231 is about 343.0272653827.

Adding to 40363231 its reverse (13236304), we get a palindrome (53599535).

The spelling of 40363231 in words is "forty million, three hundred sixty-three thousand, two hundred thirty-one".