240441307561 has 32 divisors (see below), whose sum is σ = 296834969088. Its totient is φ = 189657054720.

The previous prime is 240441307549. The next prime is 240441307571. The reversal of 240441307561 is 165703144042.

It is not a de Polignac number, because 240441307561 - 2⁷ = 240441307433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240441307561.

It is not an unprimeable number, because it can be changed into a prime (240441307571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44383725 + ... + 44389141.

It is an arithmetic number, because the mean of its divisors is an integer number (9276092784).

Almost surely, 2^240441307561 is an apocalyptic number.

It is an amenable number.

240441307561 is a deficient number, since it is larger than the sum of its proper divisors (56393661527).

240441307561 is a wasteful number, since it uses less digits than its factorization.

240441307561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6841.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 240441307561 in words is "two hundred forty billion, four hundred forty-one million, three hundred seven thousand, five hundred sixty-one".