16761228 has 48 divisors (see below), whose sum is σ = 43671936. Its totient is φ = 4959360.

The previous prime is 16761223. The next prime is 16761233. The reversal of 16761228 is 82216761.

It is an interprime number because it is at equal distance from previous prime (16761223) and next prime (16761233).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (16761221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4200 + ... + 7152.

It is an arithmetic number, because the mean of its divisors is an integer number (909832).

Almost surely, 2^16761228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16761228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21835968).

16761228 is an abundant number, since it is smaller than the sum of its proper divisors (26910708).

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

16761228 is a wasteful number, since it uses less digits than its factorization.

16761228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014 (or 3012 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 16761228 is about 4094.0478746590. The cubic root of 16761228 is about 255.9186549819.

Adding to 16761228 its reverse (82216761), we get a palindrome (98977989).

The spelling of 16761228 in words is "sixteen million, seven hundred sixty-one thousand, two hundred twenty-eight".