2660481 has 12 divisors (see below), whose sum is σ = 3857152. Its totient is φ = 1767096.

The previous prime is 2660473. The next prime is 2660509. The reversal of 2660481 is 1840662.

It is not a de Polignac number, because 2660481 - 2³ = 2660473 is a prime.

It is a super-2 number, since 2×2660481² = 14156318302722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2660401) 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 11 ways as a sum of consecutive naturals, for example, 4080 + ... + 4686.

2^2660481 is an apocalyptic number.

It is an amenable number.

2660481 is a deficient number, since it is larger than the sum of its proper divisors (1196671).

2660481 is a wasteful number, since it uses less digits than its factorization.

2660481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2660481 is about 1631.0980963756. The cubic root of 2660481 is about 138.5649493147.

The spelling of 2660481 in words is "two million, six hundred sixty thousand, four hundred eighty-one".