18028829 has 16 divisors (see below), whose sum is σ = 22528128. Its totient is φ = 14046912.

The previous prime is 18028783. The next prime is 18028837. The reversal of 18028829 is 92882081.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18028829 is a prime.

It is a super-2 number, since 2×18028829² = 650077350222482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18028792 and 18028801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18028229) 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 15 ways as a sum of consecutive naturals, for example, 4619 + ... + 7575.

It is an arithmetic number, because the mean of its divisors is an integer number (1408008).

Almost surely, 2^18028829 is an apocalyptic number.

It is an amenable number.

18028829 is a deficient number, since it is larger than the sum of its proper divisors (4499299).

18028829 is a wasteful number, since it uses less digits than its factorization.

18028829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 18028829 is about 4246.0368580595. The cubic root of 18028829 is about 262.2139784094.

The spelling of 18028829 in words is "eighteen million, twenty-eight thousand, eight hundred twenty-nine".