2123600 has 30 divisors (see below), whose sum is σ = 5102910. Its totient is φ = 849280.

The previous prime is 2123581. The next prime is 2123603. The reversal of 2123600 is 63212.

It can be written as a sum of positive squares in 3 ways, for example, as 26896 + 2096704 = 164^2 + 1448^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2255 + ... + 3054.

It is an arithmetic number, because the mean of its divisors is an integer number (170097).

2^2123600 is an apocalyptic number.

2123600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123600 is an abundant number, since it is smaller than the sum of its proper divisors (2979310).

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

2123600 is a wasteful number, since it uses less digits than its factorization.

2123600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327 (or 5316 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2123600 is about 1457.2576985557. The cubic root of 2123600 is about 128.5358396501.

Adding to 2123600 its reverse (63212), we get a palindrome (2186812).

The spelling of 2123600 in words is "two million, one hundred twenty-three thousand, six hundred".