20444213622 has 32 divisors (see below), whose sum is σ = 48237041664. Its totient is φ = 5652777600.

The previous prime is 20444213599. The next prime is 20444213659. The reversal of 20444213622 is 22631244402.

It is a self number, because there is not a number n which added to its sum of digits gives 20444213622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7849779 + ... + 7852382.

It is an arithmetic number, because the mean of its divisors is an integer number (1507407552).

Almost surely, 2^20444213622 is an apocalyptic number.

20444213622 is an abundant number, since it is smaller than the sum of its proper divisors (27792828042).

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

20444213622 is a wasteful number, since it uses less digits than its factorization.

20444213622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15702204.

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 20444213622 in words is "twenty billion, four hundred forty-four million, two hundred thirteen thousand, six hundred twenty-two".