240475486689 has 75 divisors (see below), whose sum is σ = 379238925153. Its totient is φ = 151857884376.

The previous prime is 240475486679. The next prime is 240475486721. The reversal of 240475486689 is 986684574042.

The square root of 240475486689 is 490383.

It is a perfect power (a square), and thus also a powerful number.

240475486689 is a `hidden beast` number, since 2 + 4 + 0 + 4 + 7 + 548 + 6 + 6 + 89 = 666.

It is not a de Polignac number, because 240475486689 - 2²¹ = 240473389537 is a prime.

It is a super-2 number, since 2×240475486689² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (240475486619) by changing a digit.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 2334713412 + ... + 2334713514.

Almost surely, 2^240475486689 is an apocalyptic number.

240475486689 is the 490383-rd square number.

240475486689 is the 245192-nd centered octagonal number.

It is an amenable number.

240475486689 is a deficient number, since it is larger than the sum of its proper divisors (138763438464).

240475486689 is an frugal number, since it uses more digits than its factorization.

240475486689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 63.

The spelling of 240475486689 in words is "two hundred forty billion, four hundred seventy-five million, four hundred eighty-six thousand, six hundred eighty-nine".