20442244442 has 8 divisors (see below), whose sum is σ = 31121029056. Its totient is φ = 10068568092.

The previous prime is 20442244429. The next prime is 20442244453. The reversal of 20442244442 is 24444224402.

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 = 20442244399 and 20442244408.

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, 76276898 + ... + 76277165.

It is an arithmetic number, because the mean of its divisors is an integer number (3890128632).

Almost surely, 2^20442244442 is an apocalyptic number.

20442244442 is a deficient number, since it is larger than the sum of its proper divisors (10678784614).

20442244442 is a wasteful number, since it uses less digits than its factorization.

20442244442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152554132.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 20442244442 its reverse (24444224402), we get a palindrome (44886468844).

The spelling of 20442244442 in words is "twenty billion, four hundred forty-two million, two hundred forty-four thousand, four hundred forty-two".