2163080 has 32 divisors (see below), whose sum is σ = 5154840. Its totient is φ = 814080.

The previous prime is 2163079. The next prime is 2163101. The reversal of 2163080 is 803612.

It can be written as a sum of positive squares in 4 ways, for example, as 1532644 + 630436 = 1238^2 + 794^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911 + ... + 2270.

2^2163080 is an apocalyptic number.

2163080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2163080 is an abundant number, since it is smaller than the sum of its proper divisors (2991760).

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

2163080 is a wasteful number, since it uses less digits than its factorization.

2163080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209 (or 3205 counting only the distinct ones).

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

The square root of 2163080 is about 1470.7413096803. The cubic root of 2163080 is about 129.3274935071.

Adding to 2163080 its reverse (803612), we get a palindrome (2966692).

The spelling of 2163080 in words is "two million, one hundred sixty-three thousand, eighty".