1808030 has 32 divisors (see below), whose sum is σ = 3884544. Its totient is φ = 592416.

The previous prime is 1808029. The next prime is 1808033. The reversal of 1808030 is 308081.

It is a junction number, because it is equal to n+sod(n) for n = 1807993 and 1808011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1808033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (121392).

2^1808030 is an apocalyptic number.

1808030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1808030 is an abundant number, since it is smaller than the sum of its proper divisors (2076514).

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

1808030 is a wasteful number, since it uses less digits than its factorization.

1808030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160.

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

The square root of 1808030 is about 1344.6300606487. The cubic root of 1808030 is about 121.8246607799.

The spelling of 1808030 in words is "one million, eight hundred eight thousand, thirty".