4066600 has 24 divisors (see below), whose sum is σ = 9455310. Its totient is φ = 1626560.

The previous prime is 4066597. The next prime is 4066609. The reversal of 4066600 is 66604.

It can be written as a sum of positive squares in 3 ways, for example, as 3849444 + 217156 = 1962^2 + 466^2 .

It is not an unprimeable number, because it can be changed into a prime (4066609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9967 + ... + 10366.

Almost surely, 2^4066600 is an apocalyptic number.

4066600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4066600 is an abundant number, since it is smaller than the sum of its proper divisors (5388710).

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

4066600 is a wasteful number, since it uses less digits than its factorization.

4066600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20349 (or 20340 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4066600 is about 2016.5812654094. The cubic root of 4066600 is about 159.6162679213.

The spelling of 4066600 in words is "four million, sixty-six thousand, six hundred".