40424444231 has 2 divisors, whose sum is σ = 40424444232. Its totient is φ = 40424444230.

The previous prime is 40424444209. The next prime is 40424444267. The reversal of 40424444231 is 13244442404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40424444231 - 2²⁶ = 40357335367 is a prime.

It is a super-2 number, since 2×40424444231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40424444531) 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, 20212222115 + 20212222116.

It is an arithmetic number, because the mean of its divisors is an integer number (20212222116).

Almost surely, 2^40424444231 is an apocalyptic number.

40424444231 is a deficient number, since it is larger than the sum of its proper divisors (1).

40424444231 is an equidigital number, since it uses as much as digits as its factorization.

40424444231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 40424444231 its reverse (13244442404), we get a palindrome (53668886635).

The spelling of 40424444231 in words is "forty billion, four hundred twenty-four million, four hundred forty-four thousand, two hundred thirty-one".