18060228 has 36 divisors (see below), whose sum is σ = 47127808. Its totient is φ = 5825520.

The previous prime is 18060223. The next prime is 18060233. The reversal of 18060228 is 82206081.

It is an interprime number because it is at equal distance from previous prime (18060223) and next prime (18060233).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (18060223) 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 11 ways as a sum of consecutive naturals, for example, 6976 + ... + 9207.

Almost surely, 2^18060228 is an apocalyptic number.

18060228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18060228 is an abundant number, since it is smaller than the sum of its proper divisors (29067580).

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

18060228 is a wasteful number, since it uses less digits than its factorization.

18060228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16224 (or 16219 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 18060228 is about 4249.7326974764. The cubic root of 18060228 is about 262.3661140371.

The spelling of 18060228 in words is "eighteen million, sixty thousand, two hundred twenty-eight".