2123610 has 32 divisors (see below), whose sum is σ = 5173632. Its totient is φ = 557760.

The previous prime is 2123603. The next prime is 2123617. The reversal of 2123610 is 163212.

It is an interprime number because it is at equal distance from previous prime (2123603) and next prime (2123617).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2123610.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1632 + ... + 2628.

It is an arithmetic number, because the mean of its divisors is an integer number (161676).

2^2123610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2586816).

2123610 is an abundant number, since it is smaller than the sum of its proper divisors (3050022).

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

2123610 is a wasteful number, since it uses less digits than its factorization.

2123610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2123610 is about 1457.2611296538. The cubic root of 2123610 is about 128.5360414075.

Adding to 2123610 its reverse (163212), we get a palindrome (2286822).

The spelling of 2123610 in words is "two million, one hundred twenty-three thousand, six hundred ten".