16228120 has 16 divisors (see below), whose sum is σ = 36513360. Its totient is φ = 6491232.

The previous prime is 16228103. The next prime is 16228129. The reversal of 16228120 is 2182261.

It is a junction number, because it is equal to n+sod(n) for n = 16228091 and 16228100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16228129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202812 + ... + 202891.

It is an arithmetic number, because the mean of its divisors is an integer number (2282085).

Almost surely, 2^16228120 is an apocalyptic number.

16228120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16228120 is an abundant number, since it is smaller than the sum of its proper divisors (20285240).

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

16228120 is a wasteful number, since it uses less digits than its factorization.

16228120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405714 (or 405710 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 16228120 is about 4028.4140800072. The cubic root of 16228120 is about 253.1761182134.

It can be divided in two parts, 162 and 28120, that added together give a palindrome (28282).

The spelling of 16228120 in words is "sixteen million, two hundred twenty-eight thousand, one hundred twenty".