240064663 has 4 divisors (see below), whose sum is σ = 240756840. Its totient is φ = 239372488.

The previous prime is 240064637. The next prime is 240064711. The reversal of 240064663 is 366460042.

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 240064663 - 2⁵ = 240064631 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 (240064603) 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, 345568 + ... + 346261.

It is an arithmetic number, because the mean of its divisors is an integer number (60189210).

Almost surely, 2^240064663 is an apocalyptic number.

240064663 is a deficient number, since it is larger than the sum of its proper divisors (692177).

240064663 is an equidigital number, since it uses as much as digits as its factorization.

240064663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692176.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 240064663 is about 15494.0202336256. The cubic root of 240064663 is about 621.5023081167.

The spelling of 240064663 in words is "two hundred forty million, sixty-four thousand, six hundred sixty-three".