240708965641 has 9 divisors (see below), whose sum is σ = 245362841941. Its totient is φ = 236141774752.

The previous prime is 240708965617. The next prime is 240708965681. The reversal of 240708965641 is 146569807042.

The square root of 240708965641 is 490621.

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

It can be written as a sum of positive squares in 4 ways, for example, as 21853413241 + 218855552400 = 147829^2 + 467820^2 .

It is not a de Polignac number, because 240708965641 - 2¹⁵ = 240708932873 is a prime.

It is a super-2 number, since 2×240708965641² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240708965681) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 25998285 + ... + 26007541.

Almost surely, 2^240708965641 is an apocalyptic number.

240708965641 is the 490621-st square number.

240708965641 is the 245311-st centered octagonal number.

It is an amenable number.

240708965641 is a deficient number, since it is larger than the sum of its proper divisors (4653876300).

240708965641 is an frugal number, since it uses more digits than its factorization.

240708965641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18620 (or 9310 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 240708965641 in words is "two hundred forty billion, seven hundred eight million, nine hundred sixty-five thousand, six hundred forty-one".