20444112442 has 64 divisors (see below), whose sum is σ = 36415008000. Its totient is φ = 8517408768.

The previous prime is 20444112427. The next prime is 20444112443. The reversal of 20444112442 is 24421144402.

It is a happy number.

It is a super-2 number, since 2×20444112442² (a number of 21 digits) contains 22 as substring.

20444112442 is a modest number, since divided by 112442 gives 20444 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 20444112442.

It is not an unprimeable number, because it can be changed into a prime (20444112443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3053034 + ... + 3059722.

It is an arithmetic number, because the mean of its divisors is an integer number (568984500).

Almost surely, 2^20444112442 is an apocalyptic number.

20444112442 is a deficient number, since it is larger than the sum of its proper divisors (15970895558).

20444112442 is a wasteful number, since it uses less digits than its factorization.

20444112442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7015.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 20444112442 its reverse (24421144402), we get a palindrome (44865256844).

The spelling of 20444112442 in words is "twenty billion, four hundred forty-four million, one hundred twelve thousand, four hundred forty-two".