1668512 has 24 divisors (see below), whose sum is σ = 3429216. Its totient is φ = 797632.

The previous prime is 1668509. The next prime is 1668517. The reversal of 1668512 is 2158661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1668517) 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, 398 + ... + 1869.

It is an arithmetic number, because the mean of its divisors is an integer number (142884).

2^1668512 is an apocalyptic number.

It is an amenable number.

1668512 is an abundant number, since it is smaller than the sum of its proper divisors (1760704).

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

1668512 is a wasteful number, since it uses less digits than its factorization.

1668512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300 (or 2292 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 1668512 is about 1291.7089455446. The cubic root of 1668512 is about 118.6068517019.

The spelling of 1668512 in words is "one million, six hundred sixty-eight thousand, five hundred twelve".