4457666 has 8 divisors (see below), whose sum is σ = 7038480. Its totient is φ = 2111508.

The previous prime is 4457657. The next prime is 4457683. The reversal of 4457666 is 6667544.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 117307 = 4457666 / (4 + 4 + 5 + 7 + 6 + 6 + 6).

It is a d-powerful number, because it can be written as 4² + 4³ + 5⁹ + 7⁷ + 6 + 6⁴ + 6⁸ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58616 + ... + 58691.

It is an arithmetic number, because the mean of its divisors is an integer number (879810).

Almost surely, 2^4457666 is an apocalyptic number.

4457666 is a deficient number, since it is larger than the sum of its proper divisors (2580814).

4457666 is a wasteful number, since it uses less digits than its factorization.

4457666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117328.

The product of its digits is 120960, while the sum is 38.

The square root of 4457666 is about 2111.3185453645. The cubic root of 4457666 is about 164.5770126861.

The spelling of 4457666 in words is "four million, four hundred fifty-seven thousand, six hundred sixty-six".