1668484 has 12 divisors (see below), whose sum is σ = 2929500. Its totient is φ = 831488.

The previous prime is 1668481. The next prime is 1668503. The reversal of 1668484 is 4848661.

It can be written as a sum of positive squares in 2 ways, for example, as 409600 + 1258884 = 640^2 + 1122^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1668481) 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, 1332 + ... + 2260.

It is an arithmetic number, because the mean of its divisors is an integer number (244125).

2^1668484 is an apocalyptic number.

It is an amenable number.

1668484 is a deficient number, since it is larger than the sum of its proper divisors (1261016).

1668484 is a wasteful number, since it uses less digits than its factorization.

1668484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 1380 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 1668484 is about 1291.6981071442. The cubic root of 1668484 is about 118.6061882344.

The spelling of 1668484 in words is "one million, six hundred sixty-eight thousand, four hundred eighty-four".