1826666 has 8 divisors (see below), whose sum is σ = 2748900. Its totient is φ = 910368.

The previous prime is 1826659. The next prime is 1826687. The reversal of 1826666 is 6666281.

It can be written as a sum of positive squares in 2 ways, for example, as 1500625 + 326041 = 1225^2 + 571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

1826666 is a modest number, since divided by 6666 gives 182 as remainder.

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, 611 + ... + 2006.

2^1826666 is an apocalyptic number.

1826666 is a deficient number, since it is larger than the sum of its proper divisors (922234).

1826666 is a wasteful number, since it uses less digits than its factorization.

1826666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968.

The product of its digits is 20736, while the sum is 35.

The square root of 1826666 is about 1351.5420822157. The cubic root of 1826666 is about 122.2417940497.

The spelling of 1826666 in words is "one million, eight hundred twenty-six thousand, six hundred sixty-six".