4040666 has 16 divisors (see below), whose sum is σ = 6953856. Its totient is φ = 1724976.

The previous prime is 4040653. The next prime is 4040669. The reversal of 4040666 is 6660404.

It is not an unprimeable number, because it can be changed into a prime (4040669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5195 + ... + 5921.

It is an arithmetic number, because the mean of its divisors is an integer number (434616).

Almost surely, 2^4040666 is an apocalyptic number.

4040666 is a deficient number, since it is larger than the sum of its proper divisors (2913190).

4040666 is a wasteful number, since it uses less digits than its factorization.

4040666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 4040666 is about 2010.1407910890. The cubic root of 4040666 is about 159.2762361820.

The spelling of 4040666 in words is "four million, forty thousand, six hundred sixty-six".