40030313 has 2 divisors, whose sum is σ = 40030314. Its totient is φ = 40030312.

The previous prime is 40030303. The next prime is 40030357. The reversal of 40030313 is 31303004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28217344 + 11812969 = 5312^2 + 3437^2 .

It is a cyclic number.

It is not a de Polignac number, because 40030313 - 2²⁰ = 38981737 is a prime.

It is not a weakly prime, because it can be changed into another prime (40030303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20015156 + 20015157.

It is an arithmetic number, because the mean of its divisors is an integer number (20015157).

Almost surely, 2^40030313 is an apocalyptic number.

It is an amenable number.

40030313 is a deficient number, since it is larger than the sum of its proper divisors (1).

40030313 is an equidigital number, since it uses as much as digits as its factorization.

40030313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 40030313 is about 6326.9513195535. The cubic root of 40030313 is about 342.0815583563.

Adding to 40030313 its reverse (31303004), we get a palindrome (71333317).

The spelling of 40030313 in words is "forty million, thirty thousand, three hundred thirteen".