28818416 has 20 divisors (see below), whose sum is σ = 60912024. Its totient is φ = 13099200.

The previous prime is 28818407. The next prime is 28818457. The reversal of 28818416 is 61481882.

It is a super-2 number, since 2×28818416² = 1661002201498112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28818416.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81695 + ... + 82046.

Almost surely, 2^28818416 is an apocalyptic number.

It is an amenable number.

28818416 is an abundant number, since it is smaller than the sum of its proper divisors (32093608).

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

28818416 is a wasteful number, since it uses less digits than its factorization.

28818416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163760 (or 163754 counting only the distinct ones).

The product of its digits is 24576, while the sum is 38.

The square root of 28818416 is about 5368.2786812907. The cubic root of 28818416 is about 306.5890940109.

The spelling of 28818416 in words is "twenty-eight million, eight hundred eighteen thousand, four hundred sixteen".