16701228 has 60 divisors (see below), whose sum is σ = 45975160. Its totient is φ = 5272128.

The previous prime is 16701221. The next prime is 16701229. The reversal of 16701228 is 82210761.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (16701221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4800 + ... + 7512.

Almost surely, 2^16701228 is an apocalyptic number.

16701228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16701228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22987580).

16701228 is an abundant number, since it is smaller than the sum of its proper divisors (29273932).

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

16701228 is a wasteful number, since it uses less digits than its factorization.

16701228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748 (or 2737 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 16701228 is about 4086.7135940753. The cubic root of 16701228 is about 255.6129200637.

Adding to 16701228 its reverse (82210761), we get a palindrome (98911989).

The spelling of 16701228 in words is "sixteen million, seven hundred one thousand, two hundred twenty-eight".