28560116 has 48 divisors (see below), whose sum is σ = 57341760. Its totient is φ = 12337920.

The previous prime is 28560113. The next prime is 28560137. The reversal of 28560116 is 61106582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28560113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135251 + ... + 135461.

It is an arithmetic number, because the mean of its divisors is an integer number (1194620).

Almost surely, 2^28560116 is an apocalyptic number.

28560116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28560116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

28560116 is a wasteful number, since it uses less digits than its factorization.

28560116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 28560116 is about 5344.1665393212. The cubic root of 28560116 is about 305.6703557073.

Adding to 28560116 its reverse (61106582), we get a palindrome (89666698).

The spelling of 28560116 in words is "twenty-eight million, five hundred sixty thousand, one hundred sixteen".