5440666 has 40 divisors (see below), whose sum is σ = 10486944. Its totient is φ = 2099160.

The previous prime is 5440657. The next prime is 5440703. The reversal of 5440666 is 6660445.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 52771 + ... + 52873.

Almost surely, 2^5440666 is an apocalyptic number.

5440666 is a deficient number, since it is larger than the sum of its proper divisors (5046278).

5440666 is a wasteful number, since it uses less digits than its factorization.

5440666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 5440666 is about 2332.5235261407. The cubic root of 5440666 is about 175.8803637713.

The spelling of 5440666 in words is "five million, four hundred forty thousand, six hundred sixty-six".