240489668 has 6 divisors (see below), whose sum is σ = 420856926. Its totient is φ = 120244832.

The previous prime is 240489637. The next prime is 240489671. The reversal of 240489668 is 866984042.

It can be written as a sum of positive squares in only one way, i.e., 239878144 + 611524 = 15488^2 + 782^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30061205 + ... + 30061212.

It is an arithmetic number, because the mean of its divisors is an integer number (70142821).

Almost surely, 2^240489668 is an apocalyptic number.

It is an amenable number.

240489668 is a deficient number, since it is larger than the sum of its proper divisors (180367258).

240489668 is a wasteful number, since it uses less digits than its factorization.

240489668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60122421 (or 60122419 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 240489668 is about 15507.7292986433. The cubic root of 240489668 is about 621.8688563924.

The spelling of 240489668 in words is "two hundred forty million, four hundred eighty-nine thousand, six hundred sixty-eight".