20098944 has 96 divisors (see below), whose sum is σ = 58874400. Its totient is φ = 6580224.

The previous prime is 20098927. The next prime is 20098957. The reversal of 20098944 is 44989002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20098899 and 20098908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83977 + ... + 84215.

It is an arithmetic number, because the mean of its divisors is an integer number (613275).

Almost surely, 2^20098944 is an apocalyptic number.

20098944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20098944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29437200).

20098944 is an abundant number, since it is smaller than the sum of its proper divisors (38775456).

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

20098944 is a wasteful number, since it uses less digits than its factorization.

20098944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20098944 is about 4483.1845824146. The cubic root of 20098944 is about 271.8886510783. Note that the first 3 decimals are identical.

The spelling of 20098944 in words is "twenty million, ninety-eight thousand, nine hundred forty-four".