40520093 has 2 divisors, whose sum is σ = 40520094. Its totient is φ = 40520092.

The previous prime is 40520071. The next prime is 40520107. The reversal of 40520093 is 39002504.

40520093 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., 39400729 + 1119364 = 6277^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 40520093 - 2¹⁰ = 40519069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40520393) 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, 20260046 + 20260047.

It is an arithmetic number, because the mean of its divisors is an integer number (20260047).

Almost surely, 2^40520093 is an apocalyptic number.

It is an amenable number.

40520093 is a deficient number, since it is larger than the sum of its proper divisors (1).

40520093 is an equidigital number, since it uses as much as digits as its factorization.

40520093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 40520093 is about 6365.5394900982. The cubic root of 40520093 is about 343.4710553354.

Adding to 40520093 its reverse (39002504), we get a palindrome (79522597).

The spelling of 40520093 in words is "forty million, five hundred twenty thousand, ninety-three".