16040648 has 32 divisors (see below), whose sum is σ = 32772600. Its totient is φ = 7315968.

The previous prime is 16040641. The next prime is 16040653. The reversal of 16040648 is 84604061.

It can be written as a sum of positive squares in 4 ways, for example, as 8076964 + 7963684 = 2842^2 + 2822^2 .

It is a super-3 number, since 3×16040648³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16040648.

It is not an unprimeable number, because it can be changed into a prime (16040641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8390 + ... + 10122.

Almost surely, 2^16040648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16040648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16386300).

16040648 is an abundant number, since it is smaller than the sum of its proper divisors (16731952).

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

16040648 is a wasteful number, since it uses less digits than its factorization.

16040648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 16040648 is about 4005.0777770226. The cubic root of 16040648 is about 252.1974181575.

The spelling of 16040648 in words is "sixteen million, forty thousand, six hundred forty-eight".