240535304215421 has 8 divisors (see below), whose sum is σ = 243241004999160. Its totient is φ = 237829671363328.

The previous prime is 240535304215387. The next prime is 240535304215463. The reversal of 240535304215421 is 124512403535042.

It can be written as a sum of positive squares in 4 ways, for example, as 98690515176100 + 141844789039321 = 9934310^2 + 11909861^2 .

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 240535304215421 - 2²⁶ = 240535237106557 is a prime.

It is a super-4 number, since 4×240535304215421⁴ (a number of 59 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240535304215471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9844616 + ... + 24041361.

It is an arithmetic number, because the mean of its divisors is an integer number (30405125624895).

Almost surely, 2^{240535304215421} is an apocalyptic number.

It is an amenable number.

240535304215421 is a deficient number, since it is larger than the sum of its proper divisors (2705700783739).

240535304215421 is an equidigital number, since it uses as much as digits as its factorization.

240535304215421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33965823.

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 240535304215421 in words is "two hundred forty trillion, five hundred thirty-five billion, three hundred four million, two hundred fifteen thousand, four hundred twenty-one".