16648674 has 64 divisors (see below), whose sum is σ = 41410560. Its totient is φ = 4354560.

The previous prime is 16648673. The next prime is 16648691. The reversal of 16648674 is 47684661.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (16648673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24402 + ... + 25074.

It is an arithmetic number, because the mean of its divisors is an integer number (647040).

Almost surely, 2^16648674 is an apocalyptic number.

16648674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16648674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20705280).

16648674 is an abundant number, since it is smaller than the sum of its proper divisors (24761886).

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

16648674 is a wasteful number, since it uses less digits than its factorization.

16648674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735.

The product of its digits is 193536, while the sum is 42.

The square root of 16648674 is about 4080.2786669540. The cubic root of 16648674 is about 255.3445246992.

The spelling of 16648674 in words is "sixteen million, six hundred forty-eight thousand, six hundred seventy-four".