240399073 has 2 divisors, whose sum is σ = 240399074. Its totient is φ = 240399072.

The previous prime is 240399041. The next prime is 240399119. The reversal of 240399073 is 370993042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240157009 + 242064 = 15497^2 + 492^2 .

It is a cyclic number.

It is not a de Polignac number, because 240399073 - 2⁵ = 240399041 is a prime.

It is not a weakly prime, because it can be changed into another prime (240319073) 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, 120199536 + 120199537.

It is an arithmetic number, because the mean of its divisors is an integer number (120199537).

Almost surely, 2^240399073 is an apocalyptic number.

It is an amenable number.

240399073 is a deficient number, since it is larger than the sum of its proper divisors (1).

240399073 is an equidigital number, since it uses as much as digits as its factorization.

240399073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 240399073 is about 15504.8080607275. The cubic root of 240399073 is about 621.7907583943.

The spelling of 240399073 in words is "two hundred forty million, three hundred ninety-nine thousand, seventy-three".