20442240422 has 8 divisors (see below), whose sum is σ = 31121022936. Its totient is φ = 10068566112.

The previous prime is 20442240419. The next prime is 20442240433. The reversal of 20442240422 is 22404224402.

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

It is a junction number, because it is equal to n+sod(n) for n = 20442240391 and 20442240400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76276883 + ... + 76277150.

It is an arithmetic number, because the mean of its divisors is an integer number (3890127867).

Almost surely, 2^20442240422 is an apocalyptic number.

20442240422 is a deficient number, since it is larger than the sum of its proper divisors (10678782514).

20442240422 is a wasteful number, since it uses less digits than its factorization.

20442240422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152554102.

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

Adding to 20442240422 its reverse (22404224402), we get a palindrome (42846464824).

The spelling of 20442240422 in words is "twenty billion, four hundred forty-two million, two hundred forty thousand, four hundred twenty-two".