20600 has 24 divisors (see below), whose sum is σ = 48360. Its totient is φ = 8160.

The previous prime is 20599. The next prime is 20611. The reversal of 20600 is 602.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149 + ... + 251.

It is an arithmetic number, because the mean of its divisors is an integer number (2015).

2²⁰⁶⁰⁰ is an apocalyptic number.

20600 is a gapful number since it is divisible by the number (20) 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 20600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24180).

20600 is an abundant number, since it is smaller than the sum of its proper divisors (27760).

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

20600 is a wasteful number, since it uses less digits than its factorization.

20600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 20600 is about 143.5270009441. The cubic root of 20600 is about 27.4129478649.

The spelling of 20600 in words is "twenty thousand, six hundred".