20800192 has 56 divisors (see below), whose sum is σ = 48828960. Its totient is φ = 8601600.

The previous prime is 20800183. The next prime is 20800201. The reversal of 20800192 is 29100802.

It is an interprime number because it is at equal distance from previous prime (20800183) and next prime (20800201).

It is a tau number, because it is divible by the number of its divisors (56).

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 7 ways as a sum of consecutive naturals, for example, 12192 + ... + 13792.

Almost surely, 2^20800192 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 20800192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24414480).

20800192 is an abundant number, since it is smaller than the sum of its proper divisors (28028768).

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

20800192 is a wasteful number, since it uses less digits than its factorization.

20800192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 20800192 is about 4560.7227497404. The cubic root of 20800192 is about 275.0146196085.

Adding to 20800192 its reverse (29100802), we get a palindrome (49900994).

The spelling of 20800192 in words is "twenty million, eight hundred thousand, one hundred ninety-two".