18252789 has 8 divisors (see below), whose sum is σ = 24373440. Its totient is φ = 12150336.

The previous prime is 18252763. The next prime is 18252797. The reversal of 18252789 is 98725281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18252789 - 2⁹ = 18252277 is a prime.

It is a super-3 number, since 3×18252789³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18252789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18252709) 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 7 ways as a sum of consecutive naturals, for example, 2004 + ... + 6365.

It is an arithmetic number, because the mean of its divisors is an integer number (3046680).

Almost surely, 2^18252789 is an apocalyptic number.

It is an amenable number.

18252789 is a deficient number, since it is larger than the sum of its proper divisors (6120651).

18252789 is an equidigital number, since it uses as much as digits as its factorization.

18252789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9099.

The product of its digits is 80640, while the sum is 42.

The square root of 18252789 is about 4272.3282879479. The cubic root of 18252789 is about 263.2952824723.

The spelling of 18252789 in words is "eighteen million, two hundred fifty-two thousand, seven hundred eighty-nine".