28352016 has 120 divisors (see below), whose sum is σ = 98963904. Its totient is φ = 7361280.

The previous prime is 28351993. The next prime is 28352029. The reversal of 28352016 is 61025382.

It is a super-2 number, since 2×28352016² = 1607673622528512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9810 + ... + 12366.

Almost surely, 2^28352016 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 28352016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49481952).

28352016 is an abundant number, since it is smaller than the sum of its proper divisors (70611888).

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

28352016 is a wasteful number, since it uses less digits than its factorization.

28352016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589 (or 2580 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 28352016 is about 5324.6611159772. The cubic root of 28352016 is about 304.9261345806.

Adding to 28352016 its reverse (61025382), we get a palindrome (89377398).

It can be divided in two parts, 2835 and 2016, that added together give a triangular number (4851 = T₉₈).

The spelling of 28352016 in words is "twenty-eight million, three hundred fifty-two thousand, sixteen".