40202219 has 2 divisors, whose sum is σ = 40202220. Its totient is φ = 40202218.

The previous prime is 40202209. The next prime is 40202243. The reversal of 40202219 is 91220204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40202219 - 2⁴ = 40202203 is a prime.

It is a super-2 number, since 2×40202219² = 3232436825047922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40202219.

It is not a weakly prime, because it can be changed into another prime (40202209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20101109 + 20101110.

It is an arithmetic number, because the mean of its divisors is an integer number (20101110).

Almost surely, 2^40202219 is an apocalyptic number.

40202219 is a deficient number, since it is larger than the sum of its proper divisors (1).

40202219 is an equidigital number, since it uses as much as digits as its factorization.

40202219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 40202219 is about 6340.5219816668. The cubic root of 40202219 is about 342.5705369133.

The spelling of 40202219 in words is "forty million, two hundred two thousand, two hundred nineteen".