16344648 has 48 divisors (see below), whose sum is σ = 44616780. Its totient is φ = 5405184.

The previous prime is 16344641. The next prime is 16344683. The reversal of 16344648 is 84644361.

16344648 is a `hidden beast` number, since 1 + 6 + 3 + 4 + 4 + 648 = 666.

16344648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16305444 + 39204 = 4038^2 + 198^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 (16344641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9036 + ... + 10692.

Almost surely, 2^16344648 is an apocalyptic number.

16344648 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 16344648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22308390).

16344648 is an abundant number, since it is smaller than the sum of its proper divisors (28272132).

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

16344648 is a wasteful number, since it uses less digits than its factorization.

16344648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806 (or 1799 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 16344648 is about 4042.8514689511. The cubic root of 16344648 is about 253.7806608748.

The spelling of 16344648 in words is "sixteen million, three hundred forty-four thousand, six hundred forty-eight".