1820050 has 24 divisors (see below), whose sum is σ = 3431700. Its totient is φ = 718080.

The previous prime is 1820047. The next prime is 1820051. The reversal of 1820050 is 500281.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 793881 + 1026169 = 891^2 + 1013^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820051) 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 in 11 ways as a sum of consecutive naturals, for example, 4246 + ... + 4654.

2^1820050 is an apocalyptic number.

1820050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1820050 is a deficient number, since it is larger than the sum of its proper divisors (1611650).

1820050 is a wasteful number, since it uses less digits than its factorization.

1820050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1820050 is about 1349.0922874288. The cubic root of 1820050 is about 122.0940330314.

The spelling of 1820050 in words is "one million, eight hundred twenty thousand, fifty".