18480228 has 24 divisors (see below), whose sum is σ = 46437888. Its totient is φ = 5686176.

The previous prime is 18480211. The next prime is 18480229. The reversal of 18480228 is 82208481.

It is not an unprimeable number, because it can be changed into a prime (18480229) 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, 59076 + ... + 59387.

It is an arithmetic number, because the mean of its divisors is an integer number (1934912).

Almost surely, 2^18480228 is an apocalyptic number.

It is an amenable number.

18480228 is an abundant number, since it is smaller than the sum of its proper divisors (27957660).

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

18480228 is a wasteful number, since it uses less digits than its factorization.

18480228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118483 (or 118481 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 18480228 is about 4298.8635707591. The cubic root of 18480228 is about 264.3843689429.

The spelling of 18480228 in words is "eighteen million, four hundred eighty thousand, two hundred twenty-eight".