240788681 has 8 divisors (see below), whose sum is σ = 275465280. Its totient is φ = 206181648.

The previous prime is 240788671. The next prime is 240788689. The reversal of 240788681 is 186887042.

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

It is a cyclic number.

It is not a de Polignac number, because 240788681 - 2¹⁸ = 240526537 is a prime.

It is a super-2 number, since 2×240788681² = 115958377795439522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240788689) 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, 9746 + ... + 24011.

It is an arithmetic number, because the mean of its divisors is an integer number (34433160).

Almost surely, 2^240788681 is an apocalyptic number.

It is an amenable number.

240788681 is a deficient number, since it is larger than the sum of its proper divisors (34676599).

240788681 is a wasteful number, since it uses less digits than its factorization.

240788681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34783.

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 240788681 is about 15517.3670769238. The cubic root of 240788681 is about 622.1264833435.

The spelling of 240788681 in words is "two hundred forty million, seven hundred eighty-eight thousand, six hundred eighty-one".