20004698844 has 384 divisors, whose sum is σ = 59744563200. Its totient is φ = 5747189760.

The previous prime is 20004698843. The next prime is 20004698849. The reversal of 20004698844 is 44889640002.

It is a self number, because there is not a number n which added to its sum of digits gives 20004698844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004698843) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 241020427 + ... + 241020509.

It is an arithmetic number, because the mean of its divisors is an integer number (155584800).

Almost surely, 2^20004698844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20004698844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29872281600).

20004698844 is an abundant number, since it is smaller than the sum of its proper divisors (39739864356).

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

20004698844 is a wasteful number, since it uses less digits than its factorization.

20004698844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 20004698844 in words is "twenty billion, four million, six hundred ninety-eight thousand, eight hundred forty-four".