1800325 has 24 divisors (see below), whose sum is σ = 2428416. Its totient is φ = 1320000.

The previous prime is 1800313. The next prime is 1800341. The reversal of 1800325 is 5230081.

It is a happy number.

It is not a de Polignac number, because 1800325 - 2¹⁷ = 1669253 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 17775 + ... + 17875.

It is an arithmetic number, because the mean of its divisors is an integer number (101184).

2^1800325 is an apocalyptic number.

1800325 is the 775-th octagonal number.

It is an amenable number.

1800325 is a deficient number, since it is larger than the sum of its proper divisors (628091).

1800325 is a wasteful number, since it uses less digits than its factorization.

1800325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1800325 is about 1341.7619013819. The cubic root of 1800325 is about 121.6513606400.

The spelling of 1800325 in words is "one million, eight hundred thousand, three hundred twenty-five".