4455666 has 24 divisors (see below), whose sum is σ = 10222524. Its totient is φ = 1397760.

The previous prime is 4455641. The next prime is 4455667. The reversal of 4455666 is 6665544.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3861225 + 594441 = 1965^2 + 771^2 .

It is a Curzon number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 4455666.

It is not an unprimeable number, because it can be changed into a prime (4455667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6975 + ... + 7586.

Almost surely, 2^4455666 is an apocalyptic number.

4455666 is an abundant number, since it is smaller than the sum of its proper divisors (5766858).

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

4455666 is a wasteful number, since it uses less digits than its factorization.

4455666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14586 (or 14583 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 4455666 is about 2110.8448545547. The cubic root of 4455666 is about 164.5523956732.

The spelling of 4455666 in words is "four million, four hundred fifty-five thousand, six hundred sixty-six".