240868811 has 4 divisors (see below), whose sum is σ = 251341392. Its totient is φ = 230396232.

The previous prime is 240868769. The next prime is 240868847. The reversal of 240868811 is 118868042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240868811 is a prime.

It is a super-2 number, since 2×240868811² = 116035568225107442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240868861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5236256 + ... + 5236301.

It is an arithmetic number, because the mean of its divisors is an integer number (62835348).

Almost surely, 2^240868811 is an apocalyptic number.

240868811 is a deficient number, since it is larger than the sum of its proper divisors (10472581).

240868811 is a wasteful number, since it uses less digits than its factorization.

240868811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10472580.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 240868811 is about 15519.9488079053. The cubic root of 240868811 is about 622.1954864020.

The spelling of 240868811 in words is "two hundred forty million, eight hundred sixty-eight thousand, eight hundred eleven".