12028518 has 24 divisors (see below), whose sum is σ = 26134056. Its totient is φ = 3998400.

The previous prime is 12028493. The next prime is 12028531. The reversal of 12028518 is 81582021.

12028518 is a `hidden beast` number, since 120 + 28 + 518 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12028491 and 12028500.

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 11 ways as a sum of consecutive naturals, for example, 8158 + ... + 9518.

It is an arithmetic number, because the mean of its divisors is an integer number (1088919).

Almost surely, 2^12028518 is an apocalyptic number.

12028518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12028518 is an abundant number, since it is smaller than the sum of its proper divisors (14105538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12028518 is a wasteful number, since it uses less digits than its factorization.

12028518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860 (or 1857 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 12028518 is about 3468.2153912351. The cubic root of 12028518 is about 229.1240659252.

The spelling of 12028518 in words is "twelve million, twenty-eight thousand, five hundred eighteen".