240742540266 has 32 divisors (see below), whose sum is σ = 536639722560. Its totient is φ = 71551961856.

The previous prime is 240742540253. The next prime is 240742540267. The reversal of 240742540266 is 662045247042.

It is not an unprimeable number, because it can be changed into a prime (240742540267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62109141 + ... + 62113016.

It is an arithmetic number, because the mean of its divisors is an integer number (16769991330).

Almost surely, 2^240742540266 is an apocalyptic number.

240742540266 is an abundant number, since it is smaller than the sum of its proper divisors (295897182294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240742540266 is a wasteful number, since it uses less digits than its factorization.

240742540266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124222198.

The product of its (nonzero) digits is 645120, while the sum is 42.

The spelling of 240742540266 in words is "two hundred forty billion, seven hundred forty-two million, five hundred forty thousand, two hundred sixty-six".