1840106 has 4 divisors (see below), whose sum is σ = 2760162. Its totient is φ = 920052.

The previous prime is 1840087. The next prime is 1840109. The reversal of 1840106 is 6010481.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1585081 + 255025 = 1259^2 + 505^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1840109) 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 as a sum of consecutive naturals, namely, 460025 + ... + 460028.

2^1840106 is an apocalyptic number.

1840106 is a deficient number, since it is larger than the sum of its proper divisors (920056).

1840106 is an equidigital number, since it uses as much as digits as its factorization.

1840106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920055.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1840106 is about 1356.5050681807. The cubic root of 1840106 is about 122.5408665540.

Adding to 1840106 its reverse (6010481), we get a palindrome (7850587).

The spelling of 1840106 in words is "one million, eight hundred forty thousand, one hundred six".