18430325 has 12 divisors (see below), whose sum is σ = 22985508. Its totient is φ = 14659200.

The previous prime is 18430301. The next prime is 18430327. The reversal of 18430325 is 52303481.

It can be written as a sum of positive squares in 6 ways, for example, as 7789681 + 10640644 = 2791^2 + 3262^2 .

It is not a de Polignac number, because 18430325 - 2²⁴ = 1653109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18430294 and 18430303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18430327) 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 11 ways as a sum of consecutive naturals, for example, 2489 + ... + 6561.

It is an arithmetic number, because the mean of its divisors is an integer number (1915459).

Almost surely, 2^18430325 is an apocalyptic number.

It is an amenable number.

18430325 is a deficient number, since it is larger than the sum of its proper divisors (4555183).

18430325 is a wasteful number, since it uses less digits than its factorization.

18430325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264 (or 4259 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 18430325 is about 4293.0554387289. The cubic root of 18430325 is about 264.1461780370.

The spelling of 18430325 in words is "eighteen million, four hundred thirty thousand, three hundred twenty-five".