40340352631 has 2 divisors, whose sum is σ = 40340352632. Its totient is φ = 40340352630.

The previous prime is 40340352581. The next prime is 40340352641. The reversal of 40340352631 is 13625304304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40340352631 - 2³³ = 31750418039 is a prime.

It is a super-2 number, since 2×40340352631² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40340352593 and 40340352602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40340352641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20170176315 + 20170176316.

It is an arithmetic number, because the mean of its divisors is an integer number (20170176316).

Almost surely, 2^40340352631 is an apocalyptic number.

40340352631 is a deficient number, since it is larger than the sum of its proper divisors (1).

40340352631 is an equidigital number, since it uses as much as digits as its factorization.

40340352631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 40340352631 its reverse (13625304304), we get a palindrome (53965656935).

The spelling of 40340352631 in words is "forty billion, three hundred forty million, three hundred fifty-two thousand, six hundred thirty-one".