40328513 has 2 divisors, whose sum is σ = 40328514. Its totient is φ = 40328512.

The previous prime is 40328467. The next prime is 40328537. The reversal of 40328513 is 31582304.

40328513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40233649 + 94864 = 6343^2 + 308^2 .

It is a cyclic number.

It is not a de Polignac number, because 40328513 - 2⁸ = 40328257 is a prime.

It is not a weakly prime, because it can be changed into another prime (40328413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20164256 + 20164257.

It is an arithmetic number, because the mean of its divisors is an integer number (20164257).

Almost surely, 2^40328513 is an apocalyptic number.

It is an amenable number.

40328513 is a deficient number, since it is larger than the sum of its proper divisors (1).

40328513 is an equidigital number, since it uses as much as digits as its factorization.

40328513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 40328513 is about 6350.4734469172. The cubic root of 40328513 is about 342.9288867638.

The spelling of 40328513 in words is "forty million, three hundred twenty-eight thousand, five hundred thirteen".