2180481 has 16 divisors (see below), whose sum is σ = 3058560. Its totient is φ = 1379840.

The previous prime is 2180467. The next prime is 2180491. The reversal of 2180481 is 1840812.

It is a cyclic number.

It is not a de Polignac number, because 2180481 - 2⁶ = 2180417 is a prime.

It is a super-2 number, since 2×2180481² = 9508994782722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2180491) 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 15 ways as a sum of consecutive naturals, for example, 6001 + ... + 6353.

It is an arithmetic number, because the mean of its divisors is an integer number (191160).

2^2180481 is an apocalyptic number.

It is an amenable number.

2180481 is a deficient number, since it is larger than the sum of its proper divisors (878079).

2180481 is a wasteful number, since it uses less digits than its factorization.

2180481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 2180481 is about 1476.6451841929. The cubic root of 2180481 is about 129.6733614335.

The spelling of 2180481 in words is "two million, one hundred eighty thousand, four hundred eighty-one".