40435229 has 2 divisors, whose sum is σ = 40435230. Its totient is φ = 40435228.

The previous prime is 40435201. The next prime is 40435243. The reversal of 40435229 is 92253404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39000025 + 1435204 = 6245^2 + 1198^2 .

It is a cyclic number.

It is not a de Polignac number, because 40435229 - 2²⁰ = 39386653 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40435259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20217614 + 20217615.

It is an arithmetic number, because the mean of its divisors is an integer number (20217615).

Almost surely, 2^40435229 is an apocalyptic number.

It is an amenable number.

40435229 is a deficient number, since it is larger than the sum of its proper divisors (1).

40435229 is an equidigital number, since it uses as much as digits as its factorization.

40435229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 40435229 is about 6358.8701040358. The cubic root of 40435229 is about 343.2311027727.

The spelling of 40435229 in words is "forty million, four hundred thirty-five thousand, two hundred twenty-nine".