40240244323 has 2 divisors, whose sum is σ = 40240244324. Its totient is φ = 40240244322.

The previous prime is 40240244221. The next prime is 40240244399. The reversal of 40240244323 is 32344204204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40240244323 - 2³³ = 31650309731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40240244291 and 40240244300.

It is not a weakly prime, because it can be changed into another prime (40240244423) 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, 20120122161 + 20120122162.

It is an arithmetic number, because the mean of its divisors is an integer number (20120122162).

Almost surely, 2^40240244323 is an apocalyptic number.

40240244323 is a deficient number, since it is larger than the sum of its proper divisors (1).

40240244323 is an equidigital number, since it uses as much as digits as its factorization.

40240244323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 40240244323 its reverse (32344204204), we get a palindrome (72584448527).

The spelling of 40240244323 in words is "forty billion, two hundred forty million, two hundred forty-four thousand, three hundred twenty-three".