240243311 has 16 divisors (see below), whose sum is σ = 302185728. Its totient is φ = 185539200.

The previous prime is 240243301. The next prime is 240243319. The reversal of 240243311 is 113342042.

It is not a de Polignac number, because 240243311 - 2⁶ = 240243247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240243319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5105 + ... + 22506.

It is an arithmetic number, because the mean of its divisors is an integer number (18886608).

Almost surely, 2^240243311 is an apocalyptic number.

240243311 is a deficient number, since it is larger than the sum of its proper divisors (61942417).

240243311 is a wasteful number, since it uses less digits than its factorization.

240243311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27742.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 240243311 is about 15499.7842243045. The cubic root of 240243311 is about 621.6564368873.

Adding to 240243311 its reverse (113342042), we get a palindrome (353585353).

The spelling of 240243311 in words is "two hundred forty million, two hundred forty-three thousand, three hundred eleven".