40930093 has 2 divisors, whose sum is σ = 40930094. Its totient is φ = 40930092.

The previous prime is 40930081. The next prime is 40930111. The reversal of 40930093 is 39003904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36942084 + 3988009 = 6078^2 + 1997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40930093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40930063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20465046 + 20465047.

It is an arithmetic number, because the mean of its divisors is an integer number (20465047).

Almost surely, 2^40930093 is an apocalyptic number.

It is an amenable number.

40930093 is a deficient number, since it is larger than the sum of its proper divisors (1).

40930093 is an equidigital number, since it uses as much as digits as its factorization.

40930093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 40930093 is about 6397.6630889724. The cubic root of 40930093 is about 344.6256332612.

Adding to 40930093 its reverse (39003904), we get a palindrome (79933997).

The spelling of 40930093 in words is "forty million, nine hundred thirty thousand, ninety-three".