240394663 has 8 divisors (see below), whose sum is σ = 243482400. Its totient is φ = 237326880.

The previous prime is 240394579. The next prime is 240394667. The reversal of 240394663 is 366493042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240394663 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 (240394667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20053 + ... + 29713.

It is an arithmetic number, because the mean of its divisors is an integer number (30435300).

Almost surely, 2^240394663 is an apocalyptic number.

240394663 is a deficient number, since it is larger than the sum of its proper divisors (3087737).

240394663 is a wasteful number, since it uses less digits than its factorization.

240394663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9977.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 240394663 is about 15504.6658461252. The cubic root of 240394663 is about 621.7869562249.

The spelling of 240394663 in words is "two hundred forty million, three hundred ninety-four thousand, six hundred sixty-three".