22404240242 has 8 divisors (see below), whose sum is σ = 34240442796. Its totient is φ = 10990759312.

The previous prime is 22404240239. The next prime is 22404240263. The reversal of 22404240242 is 24204240422.

It can be written as a sum of positive squares in 2 ways, for example, as 21051398281 + 1352841961 = 145091^2 + 36781^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105680273 + ... + 105680484.

Almost surely, 2^22404240242 is an apocalyptic number.

22404240242 is a deficient number, since it is larger than the sum of its proper divisors (11836202554).

22404240242 is a wasteful number, since it uses less digits than its factorization.

22404240242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211360812.

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

Adding to 22404240242 its reverse (24204240422), we get a palindrome (46608480664).

The spelling of 22404240242 in words is "twenty-two billion, four hundred four million, two hundred forty thousand, two hundred forty-two".