28560416 has 12 divisors (see below), whose sum is σ = 56228382. Its totient is φ = 14280192.

The previous prime is 28560403. The next prime is 28560437. The reversal of 28560416 is 61406582.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 9024016 = 4420^2 + 3004^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 892513 = 28560416 / (2 + 8 + 5 + 6 + 0 + 4 + 1 + 6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446225 + ... + 446288.

Almost surely, 2^28560416 is an apocalyptic number.

It is an amenable number.

28560416 is a deficient number, since it is larger than the sum of its proper divisors (27667966).

28560416 is an equidigital number, since it uses as much as digits as its factorization.

28560416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892523 (or 892515 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 28560416 is about 5344.1946072350. The cubic root of 28560416 is about 305.6714259735.

Adding to 28560416 its reverse (61406582), we get a palindrome (89966998).

The spelling of 28560416 in words is "twenty-eight million, five hundred sixty thousand, four hundred sixteen".