18230230 has 16 divisors (see below), whose sum is σ = 33034464. Its totient is φ = 7243200.

The previous prime is 18230227. The next prime is 18230249. The reversal of 18230230 is 3203281.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18230198 and 18230207.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4527 + ... + 7546.

It is an arithmetic number, because the mean of its divisors is an integer number (2064654).

Almost surely, 2^18230230 is an apocalyptic number.

18230230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18230230 is a deficient number, since it is larger than the sum of its proper divisors (14804234).

18230230 is a wasteful number, since it uses less digits than its factorization.

18230230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12231.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 18230230 is about 4269.6873421833. The cubic root of 18230230 is about 263.1867670567.

The spelling of 18230230 in words is "eighteen million, two hundred thirty thousand, two hundred thirty".