16280118 has 48 divisors (see below), whose sum is σ = 37857456. Its totient is φ = 5038080.

The previous prime is 16280081. The next prime is 16280119. The reversal of 16280118 is 81108261.

It is a junction number, because it is equal to n+sod(n) for n = 16280091 and 16280100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16280119) 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 23 ways as a sum of consecutive naturals, for example, 25078 + ... + 25718.

It is an arithmetic number, because the mean of its divisors is an integer number (788697).

Almost surely, 2^16280118 is an apocalyptic number.

16280118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16280118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18928728).

16280118 is an abundant number, since it is smaller than the sum of its proper divisors (21577338).

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

16280118 is a wasteful number, since it uses less digits than its factorization.

16280118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 16280118 is about 4034.8628229470. The cubic root of 16280118 is about 253.4462381468.

Adding to 16280118 its reverse (81108261), we get a palindrome (97388379).

The spelling of 16280118 in words is "sixteen million, two hundred eighty thousand, one hundred eighteen".