240242005 has 8 divisors (see below), whose sum is σ = 288602424. Its totient is φ = 191985600.

The previous prime is 240241997. The next prime is 240242021. The reversal of 240242005 is 500242042.

It can be written as a sum of positive squares in 4 ways, for example, as 580644 + 239661361 = 762^2 + 15481^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240242005 - 2³ = 240241997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20826 + ... + 30235.

It is an arithmetic number, because the mean of its divisors is an integer number (36075303).

Almost surely, 2^240242005 is an apocalyptic number.

It is an amenable number.

240242005 is a deficient number, since it is larger than the sum of its proper divisors (48360419).

240242005 is an equidigital number, since it uses as much as digits as its factorization.

240242005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52007.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 240242005 is about 15499.7420946285. The cubic root of 240242005 is about 621.6553104116.

Adding to 240242005 its reverse (500242042), we get a palindrome (740484047).

The spelling of 240242005 in words is "two hundred forty million, two hundred forty-two thousand, five".