1823020 has 12 divisors (see below), whose sum is σ = 3828384. Its totient is φ = 729200.

The previous prime is 1823011. The next prime is 1823021. The reversal of 1823020 is 203281.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1822985 and 1823003.

It is not an unprimeable number, because it can be changed into a prime (1823021) 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 3 ways as a sum of consecutive naturals, for example, 45556 + ... + 45595.

It is an arithmetic number, because the mean of its divisors is an integer number (319032).

2^1823020 is an apocalyptic number.

1823020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1823020 is an abundant number, since it is smaller than the sum of its proper divisors (2005364).

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

1823020 is a wasteful number, since it uses less digits than its factorization.

1823020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91160 (or 91158 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1823020 is about 1350.1925788568. The cubic root of 1823020 is about 122.1604089026.

The spelling of 1823020 in words is "one million, eight hundred twenty-three thousand, twenty".