1668284 has 12 divisors (see below), whose sum is σ = 2969400. Its totient is φ = 819888.

The previous prime is 1668253. The next prime is 1668299. The reversal of 1668284 is 4828661.

It is a congruent number.

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, 3299 + ... + 3770.

It is an arithmetic number, because the mean of its divisors is an integer number (247450).

2^1668284 is an apocalyptic number.

It is an amenable number.

1668284 is a deficient number, since it is larger than the sum of its proper divisors (1301116).

1668284 is a wasteful number, since it uses less digits than its factorization.

1668284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132 (or 7130 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 1668284 is about 1291.6206873537. The cubic root of 1668284 is about 118.6014489650.

The spelling of 1668284 in words is "one million, six hundred sixty-eight thousand, two hundred eighty-four".