1668074 has 16 divisors (see below), whose sum is σ = 2690496. Its totient is φ = 772800.

The previous prime is 1668061. The next prime is 1668083. The reversal of 1668074 is 4708661.

It is a self number, because there is not a number n which added to its sum of digits gives 1668074.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2069 + ... + 2759.

It is an arithmetic number, because the mean of its divisors is an integer number (168156).

2^1668074 is an apocalyptic number.

1668074 is a deficient number, since it is larger than the sum of its proper divisors (1022422).

1668074 is a wasteful number, since it uses less digits than its factorization.

1668074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1668074 is about 1291.5393915789. The cubic root of 1668074 is about 118.5964723245.

The spelling of 1668074 in words is "one million, six hundred sixty-eight thousand, seventy-four".