1668294 has 12 divisors (see below), whose sum is σ = 3614676. Its totient is φ = 556092.

The previous prime is 1668253. The next prime is 1668299. The reversal of 1668294 is 4928661.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46324 + ... + 46359.

It is an arithmetic number, because the mean of its divisors is an integer number (301223).

2^1668294 is an apocalyptic number.

1668294 is an abundant number, since it is smaller than the sum of its proper divisors (1946382).

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

1668294 is a wasteful number, since it uses less digits than its factorization.

1668294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92691 (or 92688 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1668294 is about 1291.6245584534. The cubic root of 1668294 is about 118.6016859375.

The spelling of 1668294 in words is "one million, six hundred sixty-eight thousand, two hundred ninety-four".