240997667329 has 4 divisors (see below), whose sum is σ = 241024052484. Its totient is φ = 240971282176.

The previous prime is 240997667297. The next prime is 240997667359. The reversal of 240997667329 is 923766799042.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73957890304 + 167039777025 = 271952^2 + 408705^2 .

It is a cyclic number.

It is not a de Polignac number, because 240997667329 - 2⁵ = 240997667297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240997667359) 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 3 ways as a sum of consecutive naturals, for example, 13178872 + ... + 13197145.

It is an arithmetic number, because the mean of its divisors is an integer number (60256013121).

Almost surely, 2^240997667329 is an apocalyptic number.

It is an amenable number.

240997667329 is a deficient number, since it is larger than the sum of its proper divisors (26385155).

240997667329 is an equidigital number, since it uses as much as digits as its factorization.

240997667329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26385154.

The product of its (nonzero) digits is 61725888, while the sum is 64.

The spelling of 240997667329 in words is "two hundred forty billion, nine hundred ninety-seven million, six hundred sixty-seven thousand, three hundred twenty-nine".