40413313 has 2 divisors, whose sum is σ = 40413314. Its totient is φ = 40413312.

The previous prime is 40413299. The next prime is 40413337. The reversal of 40413313 is 31331404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34951744 + 5461569 = 5912^2 + 2337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40413313 is a prime.

It is not a weakly prime, because it can be changed into another prime (40413343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20206656 + 20206657.

It is an arithmetic number, because the mean of its divisors is an integer number (20206657).

Almost surely, 2^40413313 is an apocalyptic number.

It is an amenable number.

40413313 is a deficient number, since it is larger than the sum of its proper divisors (1).

40413313 is an equidigital number, since it uses as much as digits as its factorization.

40413313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 40413313 is about 6357.1466083456. The cubic root of 40413313 is about 343.1690808472.

Adding to 40413313 its reverse (31331404), we get a palindrome (71744717).

The spelling of 40413313 in words is "forty million, four hundred thirteen thousand, three hundred thirteen".