4538666 has 8 divisors (see below), whose sum is σ = 7426944. Its totient is φ = 2063020.

The previous prime is 4538657. The next prime is 4538669. The reversal of 4538666 is 6668354.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4538669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103130 + ... + 103173.

It is an arithmetic number, because the mean of its divisors is an integer number (928368).

Almost surely, 2^4538666 is an apocalyptic number.

4538666 is a deficient number, since it is larger than the sum of its proper divisors (2888278).

4538666 is a wasteful number, since it uses less digits than its factorization.

4538666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206316.

The product of its digits is 103680, while the sum is 38.

The square root of 4538666 is about 2130.4145136569. The cubic root of 4538666 is about 165.5678749714.

It can be divided in two parts, 453 and 8666, that added together give a palindrome (9119).

The spelling of 4538666 in words is "four million, five hundred thirty-eight thousand, six hundred sixty-six".