2100600 has 96 divisors (see below), whose sum is σ = 7254000. Its totient is φ = 558720.

The previous prime is 2100589. The next prime is 2100607. The reversal of 2100600 is 60012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5206 + ... + 5594.

2^2100600 is an apocalyptic number.

2100600 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 2100600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3627000).

2100600 is an abundant number, since it is smaller than the sum of its proper divisors (5153400).

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

2100600 is a wasteful number, since it uses less digits than its factorization.

2100600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2100600 is about 1449.3446795017. The cubic root of 2100600 is about 128.0701113295.

Adding to 2100600 its reverse (60012), we get a palindrome (2160612).

The spelling of 2100600 in words is "two million, one hundred thousand, six hundred".