240978245221 has 8 divisors (see below), whose sum is σ = 275412896064. Its totient is φ = 206545891200.

The previous prime is 240978245219. The next prime is 240978245281. The reversal of 240978245221 is 122542879042.

240978245221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 240978245221 - 2¹ = 240978245219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240978245281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343180 + ... + 774421.

It is an arithmetic number, because the mean of its divisors is an integer number (34426612008).

Almost surely, 2^240978245221 is an apocalyptic number.

It is an amenable number.

240978245221 is a deficient number, since it is larger than the sum of its proper divisors (34434650843).

240978245221 is a wasteful number, since it uses less digits than its factorization.

240978245221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148411.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 240978245221 in words is "two hundred forty billion, nine hundred seventy-eight million, two hundred forty-five thousand, two hundred twenty-one".