240442399 has 2 divisors, whose sum is σ = 240442400. Its totient is φ = 240442398.

The previous prime is 240442379. The next prime is 240442403. The reversal of 240442399 is 993244042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240442399 - 2¹⁷ = 240311327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240442379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120221199 + 120221200.

It is an arithmetic number, because the mean of its divisors is an integer number (120221200).

Almost surely, 2^240442399 is an apocalyptic number.

240442399 is a deficient number, since it is larger than the sum of its proper divisors (1).

240442399 is an equidigital number, since it uses as much as digits as its factorization.

240442399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 240442399 is about 15506.2051772831. The cubic root of 240442399 is about 621.8281102967.

The spelling of 240442399 in words is "two hundred forty million, four hundred forty-two thousand, three hundred ninety-nine".