1810066 has 8 divisors (see below), whose sum is σ = 2720844. Its totient is φ = 903120.

The previous prime is 1810063. The next prime is 1810069. The reversal of 1810066 is 6600181.

It is an interprime number because it is at equal distance from previous prime (1810063) and next prime (1810069).

It can be written as a sum of positive squares in 2 ways, for example, as 1745041 + 65025 = 1321^2 + 255^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1810063) 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, 1176 + ... + 2236.

2^1810066 is an apocalyptic number.

1810066 is a deficient number, since it is larger than the sum of its proper divisors (910778).

1810066 is a wasteful number, since it uses less digits than its factorization.

1810066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1810066 is about 1345.3869331906. The cubic root of 1810066 is about 121.8703720355.

The spelling of 1810066 in words is "one million, eight hundred ten thousand, sixty-six".