40238699 has 2 divisors, whose sum is σ = 40238700. Its totient is φ = 40238698.

The previous prime is 40238687. The next prime is 40238717. The reversal of 40238699 is 99683204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40238699 - 2⁴ = 40238683 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (40237699) 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, 20119349 + 20119350.

It is an arithmetic number, because the mean of its divisors is an integer number (20119350).

Almost surely, 2^40238699 is an apocalyptic number.

40238699 is a deficient number, since it is larger than the sum of its proper divisors (1).

40238699 is an equidigital number, since it uses as much as digits as its factorization.

40238699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 40238699 is about 6343.3980641294. The cubic root of 40238699 is about 342.6741231948.

The spelling of 40238699 in words is "forty million, two hundred thirty-eight thousand, six hundred ninety-nine".