2130680 has 16 divisors (see below), whose sum is σ = 4794120. Its totient is φ = 852256.

The previous prime is 2130673. The next prime is 2130683. The reversal of 2130680 is 860312.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130683) 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, 26594 + ... + 26673.

2^2130680 is an apocalyptic number.

2130680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130680 is an abundant number, since it is smaller than the sum of its proper divisors (2663440).

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

2130680 is a wasteful number, since it uses less digits than its factorization.

2130680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53278 (or 53274 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2130680 is about 1459.6848975036. The cubic root of 2130680 is about 128.6785256981.

Adding to 2130680 its reverse (860312), we get a palindrome (2990992).

The spelling of 2130680 in words is "two million, one hundred thirty thousand, six hundred eighty".