16445128 has 32 divisors (see below), whose sum is σ = 36380160. Its totient is φ = 6819840.

The previous prime is 16445119. The next prime is 16445167. The reversal of 16445128 is 82154461.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 16445128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3001 + ... + 6472.

It is an arithmetic number, because the mean of its divisors is an integer number (1136880).

Almost surely, 2^16445128 is an apocalyptic number.

It is an amenable number.

16445128 is an abundant number, since it is smaller than the sum of its proper divisors (19935032).

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

16445128 is a wasteful number, since it uses less digits than its factorization.

16445128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9517 (or 9513 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 16445128 is about 4055.2593012038. The cubic root of 16445128 is about 254.2996443033.

Adding to 16445128 its reverse (82154461), we get a palindrome (98599589).

The spelling of 16445128 in words is "sixteen million, four hundred forty-five thousand, one hundred twenty-eight".