240090024857 has 4 divisors (see below), whose sum is σ = 244620025380. Its totient is φ = 235560024336.

The previous prime is 240090024809. The next prime is 240090024871. The reversal of 240090024857 is 758420090042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 198901728256 + 41188296601 = 445984^2 + 202949^2 .

It is a cyclic number.

It is not a de Polignac number, because 240090024857 - 2¹⁸ = 240089762713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240090024887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2265000182 + ... + 2265000287.

It is an arithmetic number, because the mean of its divisors is an integer number (61155006345).

Almost surely, 2^240090024857 is an apocalyptic number.

It is an amenable number.

240090024857 is a deficient number, since it is larger than the sum of its proper divisors (4530000523).

240090024857 is an equidigital number, since it uses as much as digits as its factorization.

240090024857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530000522.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 240090024857 in words is "two hundred forty billion, ninety million, twenty-four thousand, eight hundred fifty-seven".