240318589729 has 3 divisors (see below), whose sum is σ = 240319079953. Its totient is φ = 240318099506.

The previous prime is 240318589661. The next prime is 240318589747. The reversal of 240318589729 is 927985813042.

The square root of 240318589729 is 490223.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 240318589729 - 2²³ = 240310201121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240318089729) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 245112 + ... + 735334.

Almost surely, 2^240318589729 is an apocalyptic number.

240318589729 is the 490223-rd square number.

240318589729 is the 245112-nd centered octagonal number.

It is an amenable number.

240318589729 is a deficient number, since it is larger than the sum of its proper divisors (490224).

240318589729 is an frugal number, since it uses more digits than its factorization.

240318589729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980446 (or 490223 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 240318589729 in words is "two hundred forty billion, three hundred eighteen million, five hundred eighty-nine thousand, seven hundred twenty-nine".