40305193 has 2 divisors, whose sum is σ = 40305194. Its totient is φ = 40305192.

The previous prime is 40305121. The next prime is 40305203. The reversal of 40305193 is 39150304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24088464 + 16216729 = 4908^2 + 4027^2 .

It is a cyclic number.

It is not a de Polignac number, because 40305193 - 2²¹ = 38208041 is a prime.

It is not a weakly prime, because it can be changed into another prime (40306193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20152596 + 20152597.

It is an arithmetic number, because the mean of its divisors is an integer number (20152597).

Almost surely, 2^40305193 is an apocalyptic number.

It is an amenable number.

40305193 is a deficient number, since it is larger than the sum of its proper divisors (1).

40305193 is an equidigital number, since it uses as much as digits as its factorization.

40305193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 40305193 is about 6348.6370978345. The cubic root of 40305193 is about 342.8627743701.

Adding to 40305193 its reverse (39150304), we get a palindrome (79455497).

The spelling of 40305193 in words is "forty million, three hundred five thousand, one hundred ninety-three".