4049666 has 4 divisors (see below), whose sum is σ = 6074502. Its totient is φ = 2024832.

The previous prime is 4049609. The next prime is 4049707. The reversal of 4049666 is 6669404.

4049666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3916441 + 133225 = 1979^2 + 365^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012415 + ... + 1012418.

Almost surely, 2^4049666 is an apocalyptic number.

4049666 is a deficient number, since it is larger than the sum of its proper divisors (2024836).

4049666 is a wasteful number, since it uses less digits than its factorization.

4049666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024835.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 4049666 is about 2012.3781950717. The cubic root of 4049666 is about 159.3944034302.

The spelling of 4049666 in words is "four million, forty-nine thousand, six hundred sixty-six".