18483228 has 30 divisors (see below), whose sum is σ = 48319656. Its totient is φ = 6160968.

The previous prime is 18483211. The next prime is 18483229. The reversal of 18483228 is 82238481.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 18483192 and 18483201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18483229) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 28200 + ... + 28847.

Almost surely, 2^18483228 is an apocalyptic number.

18483228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18483228 is an abundant number, since it is smaller than the sum of its proper divisors (29836428).

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

18483228 is a wasteful number, since it uses less digits than its factorization.

18483228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57063 (or 57052 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 18483228 is about 4299.2124860258. The cubic root of 18483228 is about 264.3986745058.

It can be divided in two parts, 18483 and 228, that multiplied together give a palindrome (4214124).

The spelling of 18483228 in words is "eighteen million, four hundred eighty-three thousand, two hundred twenty-eight".