40434193 has 2 divisors, whose sum is σ = 40434194. Its totient is φ = 40434192.

The previous prime is 40434187. The next prime is 40434203. The reversal of 40434193 is 39143404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39337984 + 1096209 = 6272^2 + 1047^2 .

It is a cyclic number.

It is not a de Polignac number, because 40434193 - 2⁹ = 40433681 is a prime.

It is a super-2 number, since 2×40434193² = 3269847927122498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40434593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20217096 + 20217097.

It is an arithmetic number, because the mean of its divisors is an integer number (20217097).

Almost surely, 2^40434193 is an apocalyptic number.

It is an amenable number.

40434193 is a deficient number, since it is larger than the sum of its proper divisors (1).

40434193 is an equidigital number, since it uses as much as digits as its factorization.

40434193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 40434193 is about 6358.7886425010. The cubic root of 40434193 is about 343.2281714142.

Adding to 40434193 its reverse (39143404), we get a palindrome (79577597).

The spelling of 40434193 in words is "forty million, four hundred thirty-four thousand, one hundred ninety-three".