240646667 has 4 divisors (see below), whose sum is σ = 241141296. Its totient is φ = 240152040.

The previous prime is 240646657. The next prime is 240646691. The reversal of 240646667 is 766646042.

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

It is a cyclic number.

It is not a de Polignac number, because 240646667 - 2⁸ = 240646411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240646657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246584 + ... + 247557.

It is an arithmetic number, because the mean of its divisors is an integer number (60285324).

Almost surely, 2^240646667 is an apocalyptic number.

240646667 is a deficient number, since it is larger than the sum of its proper divisors (494629).

240646667 is an equidigital number, since it uses as much as digits as its factorization.

240646667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494628.

The product of its (nonzero) digits is 290304, while the sum is 41.

The square root of 240646667 is about 15512.7904324142. The cubic root of 240646667 is about 622.0041519489.

The spelling of 240646667 in words is "two hundred forty million, six hundred forty-six thousand, six hundred sixty-seven".