20038896 has 90 divisors (see below), whose sum is σ = 58767072. Its totient is φ = 6367680.

The previous prime is 20038883. The next prime is 20038897. The reversal of 20038896 is 69883002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20038896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20038897) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 299055 + ... + 299121.

Almost surely, 2^20038896 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 20038896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29383536).

20038896 is an abundant number, since it is smaller than the sum of its proper divisors (38728176).

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

20038896 is a wasteful number, since it uses less digits than its factorization.

20038896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 103 counting only the distinct ones).

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

The square root of 20038896 is about 4476.4825477153. The cubic root of 20038896 is about 271.6176143553.

The spelling of 20038896 in words is "twenty million, thirty-eight thousand, eight hundred ninety-six".