16540048 has 90 divisors (see below), whose sum is σ = 40142706. Its totient is φ = 6580224.

The previous prime is 16540037. The next prime is 16540061. The reversal of 16540048 is 84004561.

It can be written as a sum of positive squares in 3 ways, for example, as 7225344 + 9314704 = 2688^2 + 3052^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 16539998 and 16540025.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 226540 + ... + 226612.

Almost surely, 2^16540048 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 16540048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20071353).

16540048 is an abundant number, since it is smaller than the sum of its proper divisors (23602658).

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

16540048 is a wasteful number, since it uses less digits than its factorization.

16540048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 16540048 is about 4066.9457827711. The cubic root of 16540048 is about 254.7879718993.

The spelling of 16540048 in words is "sixteen million, five hundred forty thousand, forty-eight".