16228116 has 36 divisors (see below), whose sum is σ = 41169492. Its totient is φ = 5389824.

The previous prime is 16228103. The next prime is 16228129. The reversal of 16228116 is 61182261.

It is an interprime number because it is at equal distance from previous prime (16228103) and next prime (16228129).

It can be written as a sum of positive squares in 2 ways, for example, as 8643600 + 7584516 = 2940^2 + 2754^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 16228116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12070 + ... + 13346.

It is an arithmetic number, because the mean of its divisors is an integer number (1143597).

Almost surely, 2^16228116 is an apocalyptic number.

It is an amenable number.

16228116 is an abundant number, since it is smaller than the sum of its proper divisors (24941376).

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

16228116 is a wasteful number, since it uses less digits than its factorization.

16228116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640 (or 1635 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 16228116 is about 4028.4135835338. The cubic root of 16228116 is about 253.1760974119.

The spelling of 16228116 in words is "sixteen million, two hundred twenty-eight thousand, one hundred sixteen".