2163260 has 24 divisors (see below), whose sum is σ = 4956336. Its totient is φ = 786560.

The previous prime is 2163251. The next prime is 2163263. The reversal of 2163260 is 623612.

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 (2163263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4697 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (206514).

2^2163260 is an apocalyptic number.

2163260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2163260 is an abundant number, since it is smaller than the sum of its proper divisors (2793076).

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

2163260 is a wasteful number, since it uses less digits than its factorization.

2163260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9853 (or 9851 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2163260 is about 1470.8025020376. The cubic root of 2163260 is about 129.3310807227.

Adding to 2163260 its reverse (623612), we get a palindrome (2786872).

The spelling of 2163260 in words is "two million, one hundred sixty-three thousand, two hundred sixty".