240307399 has 2 divisors, whose sum is σ = 240307400. Its totient is φ = 240307398.

The previous prime is 240307373. The next prime is 240307409. The reversal of 240307399 is 993703042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240307399 - 2⁵ = 240307367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240307499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120153699 + 120153700.

It is an arithmetic number, because the mean of its divisors is an integer number (120153700).

Almost surely, 2^240307399 is an apocalyptic number.

240307399 is a deficient number, since it is larger than the sum of its proper divisors (1).

240307399 is an equidigital number, since it uses as much as digits as its factorization.

240307399 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 240307399 is about 15501.8514700664. The cubic root of 240307399 is about 621.7117102619.

The spelling of 240307399 in words is "two hundred forty million, three hundred seven thousand, three hundred ninety-nine".