2112680 has 16 divisors (see below), whose sum is σ = 4753620. Its totient is φ = 845056.

The previous prime is 2112631. The next prime is 2112683. The reversal of 2112680 is 862112.

It can be written as a sum of positive squares in 2 ways, for example, as 1705636 + 407044 = 1306^2 + 638^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2112683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26369 + ... + 26448.

2^2112680 is an apocalyptic number.

2112680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112680 is an abundant number, since it is smaller than the sum of its proper divisors (2640940).

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

2112680 is a wasteful number, since it uses less digits than its factorization.

2112680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52828 (or 52824 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2112680 is about 1453.5061059383. The cubic root of 2112680 is about 128.3151414404.

Adding to 2112680 its reverse (862112), we get a palindrome (2974792).

The spelling of 2112680 in words is "two million, one hundred twelve thousand, six hundred eighty".