240343213241 has 8 divisors (see below), whose sum is σ = 254513400264. Its totient is φ = 226176620800.

The previous prime is 240343213237. The next prime is 240343213247. The reversal of 240343213241 is 142312343042.

It can be written as a sum of positive squares in 4 ways, for example, as 71014255225 + 169328958016 = 266485^2 + 411496^2 .

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 240343213241 - 2² = 240343213237 is a prime.

It is a super-3 number, since 3×240343213241³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (240343213247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760370 + ... + 1029003.

It is an arithmetic number, because the mean of its divisors is an integer number (31814175033).

Almost surely, 2^240343213241 is an apocalyptic number.

It is an amenable number.

240343213241 is a deficient number, since it is larger than the sum of its proper divisors (14170187023).

240343213241 is a wasteful number, since it uses less digits than its factorization.

240343213241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797291.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 240343213241 its reverse (142312343042), we get a palindrome (382655556283).

The spelling of 240343213241 in words is "two hundred forty billion, three hundred forty-three million, two hundred thirteen thousand, two hundred forty-one".