28235116 has 24 divisors (see below), whose sum is σ = 60814880. Its totient is φ = 11169792.

The previous prime is 28235111. The next prime is 28235149. The reversal of 28235116 is 61153282.

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

It is not an unprimeable number, because it can be changed into a prime (28235111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38421 + ... + 39148.

Almost surely, 2^28235116 is an apocalyptic number.

28235116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28235116 is an abundant number, since it is smaller than the sum of its proper divisors (32579764).

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

28235116 is a wasteful number, since it uses less digits than its factorization.

28235116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77593 (or 77591 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 28235116 is about 5313.6725529524. The cubic root of 28235116 is about 304.5064704914.

Adding to 28235116 its reverse (61153282), we get a palindrome (89388398).

The spelling of 28235116 in words is "twenty-eight million, two hundred thirty-five thousand, one hundred sixteen".