3666340 has 12 divisors (see below), whose sum is σ = 7699356. Its totient is φ = 1466528.

The previous prime is 3666331. The next prime is 3666347. The reversal of 3666340 is 436663.

3666340 = T₄₀₈ + T₄₀₉ + ... + T₄₄₇.

It can be written as a sum of positive squares in 2 ways, for example, as 589824 + 3076516 = 768^2 + 1754^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3666299 and 3666308.

It is not an unprimeable number, because it can be changed into a prime (3666347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91639 + ... + 91678.

It is an arithmetic number, because the mean of its divisors is an integer number (641613).

Almost surely, 2^3666340 is an apocalyptic number.

It is an amenable number.

3666340 is an abundant number, since it is smaller than the sum of its proper divisors (4033016).

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

3666340 is a wasteful number, since it uses less digits than its factorization.

3666340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183326 (or 183324 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 3666340 is about 1914.7689155614. The cubic root of 3666340 is about 154.1975874997.

The spelling of 3666340 in words is "three million, six hundred sixty-six thousand, three hundred forty".