1850 has 12 divisors (see below), whose sum is σ = 3534. Its totient is φ = 720.

The previous prime is 1847. The next prime is 1861. The reversal of 1850 is 581.

1850 is nontrivially palindromic in base 3.

It is a Cunningham number, because it is equal to 43²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1681 + 169 = 41^2 + 13^2 .

It is an alternating number because its digits alternate between odd and even.

1850 is an undulating number in base 7.

It is a Curzon number.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32 + ... + 68.

1850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1850 is a deficient number, since it is larger than the sum of its proper divisors (1684).

1850 is a wasteful number, since it uses less digits than its factorization.

1850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1850 is about 43.0116263352. The cubic root of 1850 is about 12.2760102619.

It can be divided in two parts, 18 and 50, that multiplied together give a square (900 = 30²).

The spelling of 1850 in words is "one thousand, eight hundred fifty".