18230929 has 4 divisors (see below), whose sum is σ = 18249840. Its totient is φ = 18212020.

The previous prime is 18230923. The next prime is 18230939. The reversal of 18230929 is 92903281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18230929 - 2¹⁵ = 18198161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18230894 and 18230903.

It is not an unprimeable number, because it can be changed into a prime (18230923) 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, 7927 + ... + 9964.

It is an arithmetic number, because the mean of its divisors is an integer number (4562460).

Almost surely, 2^18230929 is an apocalyptic number.

It is an amenable number.

18230929 is a deficient number, since it is larger than the sum of its proper divisors (18911).

18230929 is a wasteful number, since it uses less digits than its factorization.

18230929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18910.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 18230929 is about 4269.7691975094. The cubic root of 18230929 is about 263.1901307956.

The spelling of 18230929 in words is "eighteen million, two hundred thirty thousand, nine hundred twenty-nine".