16446648 has 32 divisors (see below), whose sum is σ = 42230160. Its totient is φ = 5333760.

The previous prime is 16446643. The next prime is 16446659. The reversal of 16446648 is 84664461.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16446643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8373 + ... + 10148.

Almost surely, 2^16446648 is an apocalyptic number.

It is an amenable number.

16446648 is an abundant number, since it is smaller than the sum of its proper divisors (25783512).

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

16446648 is a wasteful number, since it uses less digits than its factorization.

16446648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18567 (or 18563 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 16446648 is about 4055.4467078239. The cubic root of 16446648 is about 254.3074789145.

The spelling of 16446648 in words is "sixteen million, four hundred forty-six thousand, six hundred forty-eight".