1670466 has 32 divisors (see below), whose sum is σ = 3944448. Its totient is φ = 461520.

The previous prime is 1670447. The next prime is 1670477. The reversal of 1670466 is 6640761.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 661 + ... + 1943.

It is an arithmetic number, because the mean of its divisors is an integer number (123264).

2^1670466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1670466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1972224).

1670466 is an abundant number, since it is smaller than the sum of its proper divisors (2273982).

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

1670466 is a wasteful number, since it uses less digits than its factorization.

1670466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1670466 is about 1292.4650865691. The cubic root of 1670466 is about 118.6531339335.

The spelling of 1670466 in words is "one million, six hundred seventy thousand, four hundred sixty-six".