240404220242 has 16 divisors (see below), whose sum is σ = 373927152600. Its totient is φ = 115781527680.

The previous prime is 240404220241. The next prime is 240404220293. The reversal of 240404220242 is 242022404042.

It can be written as a sum of positive squares in 4 ways, for example, as 89611021201 + 150793199041 = 299351^2 + 388321^2 .

It is a super-2 number, since 2×240404220242² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (240404220241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4898267 + ... + 4947102.

Almost surely, 2^240404220242 is an apocalyptic number.

240404220242 is a deficient number, since it is larger than the sum of its proper divisors (133522932358).

240404220242 is a wasteful number, since it uses less digits than its factorization.

240404220242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9845821.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 240404220242 its reverse (242022404042), we get a palindrome (482426624284).

The spelling of 240404220242 in words is "two hundred forty billion, four hundred four million, two hundred twenty thousand, two hundred forty-two".