16305228 has 18 divisors (see below), whose sum is σ = 41216084. Its totient is φ = 5435064.

The previous prime is 16305217. The next prime is 16305251. The reversal of 16305228 is 82250361.

16305228 is a `hidden beast` number, since 1 + 630 + 5 + 2 + 28 = 666.

16305228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226426 + ... + 226497.

Almost surely, 2^16305228 is an apocalyptic number.

16305228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16305228 is an abundant number, since it is smaller than the sum of its proper divisors (24910856).

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

16305228 is a wasteful number, since it uses less digits than its factorization.

16305228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452933 (or 452928 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 16305228 is about 4037.9732539976. The cubic root of 16305228 is about 253.5764740157.

Adding to 16305228 its reverse (82250361), we get a palindrome (98555589).

The spelling of 16305228 in words is "sixteen million, three hundred five thousand, two hundred twenty-eight".