40188299 has 2 divisors, whose sum is σ = 40188300. Its totient is φ = 40188298.

The previous prime is 40188293. The next prime is 40188301. The reversal of 40188299 is 99288104.

40188299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40188299 - 2⁴ = 40188283 is a prime.

Together with 40188301, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40188293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20094149 + 20094150.

It is an arithmetic number, because the mean of its divisors is an integer number (20094150).

Almost surely, 2^40188299 is an apocalyptic number.

40188299 is a deficient number, since it is larger than the sum of its proper divisors (1).

40188299 is an equidigital number, since it uses as much as digits as its factorization.

40188299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 40188299 is about 6339.4241852080. The cubic root of 40188299 is about 342.5309940517.

The spelling of 40188299 in words is "forty million, one hundred eighty-eight thousand, two hundred ninety-nine".