20442042224 has 20 divisors (see below), whose sum is σ = 41936248944. Its totient is φ = 9619784448.

The previous prime is 20442042197. The next prime is 20442042253. The reversal of 20442042224 is 42224024402.

It is a junction number, because it is equal to n+sod(n) for n = 20442042193 and 20442042202.

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, 37577012 + ... + 37577555.

Almost surely, 2^20442042224 is an apocalyptic number.

It is an amenable number.

20442042224 is an abundant number, since it is smaller than the sum of its proper divisors (21494206720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20442042224 is a wasteful number, since it uses less digits than its factorization.

20442042224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75154592 (or 75154586 counting only the distinct ones).

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

Adding to 20442042224 its reverse (42224024402), we get a palindrome (62666066626).

The spelling of 20442042224 in words is "twenty billion, four hundred forty-two million, forty-two thousand, two hundred twenty-four".