20444844402 has 48 divisors (see below), whose sum is σ = 47367334872. Its totient is φ = 6350553600.

The previous prime is 20444844389. The next prime is 20444844403.

20444844402 is a `hidden beast` number, since 204 + 4 + 4 + 8 + 4 + 440 + 2 = 666.

20444844402 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 18585596241 + 1859248161 = 136329^2 + 43119^2 .

It is not an unprimeable number, because it can be changed into a prime (20444844403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 299853 + ... + 361664.

Almost surely, 2^20444844402 is an apocalyptic number.

20444844402 is an abundant number, since it is smaller than the sum of its proper divisors (26922490470).

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

20444844402 is a wasteful number, since it uses less digits than its factorization.

20444844402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661643 (or 661640 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 36.

The spelling of 20444844402 in words is "twenty billion, four hundred forty-four million, eight hundred forty-four thousand, four hundred two".