240985566 has 12 divisors (see below), whose sum is σ = 522135432. Its totient is φ = 80328516.

The previous prime is 240985553. The next prime is 240985579. The reversal of 240985566 is 665589042.

240985566 is a `hidden beast` number, since 2 + 4 + 0 + 9 + 85 + 566 = 666.

It is an interprime number because it is at equal distance from previous prime (240985553) and next prime (240985579).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 6694026 + ... + 6694061.

It is an arithmetic number, because the mean of its divisors is an integer number (43511286).

Almost surely, 2^240985566 is an apocalyptic number.

240985566 is an abundant number, since it is smaller than the sum of its proper divisors (281149866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240985566 is a wasteful number, since it uses less digits than its factorization.

240985566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13388095 (or 13388092 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 240985566 is about 15523.7098014618. The cubic root of 240985566 is about 622.2960012831.

The spelling of 240985566 in words is "two hundred forty million, nine hundred eighty-five thousand, five hundred sixty-six".