16226028 has 144 divisors (see below), whose sum is σ = 52469760. Its totient is φ = 4245696.

The previous prime is 16226027. The next prime is 16226039. The reversal of 16226028 is 82062261.

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

It is a junction number, because it is equal to n+sod(n) for n = 16225992 and 16226010.

It is not an unprimeable number, because it can be changed into a prime (16226027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127701 + ... + 127827.

Almost surely, 2^16226028 is an apocalyptic number.

16226028 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 16226028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26234880).

16226028 is an abundant number, since it is smaller than the sum of its proper divisors (36243732).

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

16226028 is a wasteful number, since it uses less digits than its factorization.

16226028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 16226028 is about 4028.1544161067. The cubic root of 16226028 is about 253.1652385962.

Adding to 16226028 its reverse (82062261), we get a palindrome (98288289).

The spelling of 16226028 in words is "sixteen million, two hundred twenty-six thousand, twenty-eight".