16538648 has 16 divisors (see below), whose sum is σ = 35440080. Its totient is φ = 7087968.

The previous prime is 16538647. The next prime is 16538657. The reversal of 16538648 is 84683561.

16538648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16538647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147611 + ... + 147722.

It is an arithmetic number, because the mean of its divisors is an integer number (2215005).

Almost surely, 2^16538648 is an apocalyptic number.

It is an amenable number.

16538648 is an abundant number, since it is smaller than the sum of its proper divisors (18901432).

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

16538648 is a wasteful number, since it uses less digits than its factorization.

16538648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295346 (or 295342 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 16538648 is about 4066.7736597947. The cubic root of 16538648 is about 254.7807830200.

It can be divided in two parts, 1653 and 8648, that added together give a palindrome (10301).

The spelling of 16538648 in words is "sixteen million, five hundred thirty-eight thousand, six hundred forty-eight".