40320424349 has 2 divisors, whose sum is σ = 40320424350. Its totient is φ = 40320424348.

The previous prime is 40320424307. The next prime is 40320424433. The reversal of 40320424349 is 94342402304.

40320424349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35492676025 + 4827748324 = 188395^2 + 69482^2 .

It is a cyclic number.

It is not a de Polignac number, because 40320424349 - 2⁸ = 40320424093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40320724349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20160212174 + 20160212175.

It is an arithmetic number, because the mean of its divisors is an integer number (20160212175).

Almost surely, 2^40320424349 is an apocalyptic number.

It is an amenable number.

40320424349 is a deficient number, since it is larger than the sum of its proper divisors (1).

40320424349 is an equidigital number, since it uses as much as digits as its factorization.

40320424349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 35.

The spelling of 40320424349 in words is "forty billion, three hundred twenty million, four hundred twenty-four thousand, three hundred forty-nine".