28620016 has 20 divisors (see below), whose sum is σ = 55580272. Its totient is φ = 14276736.

The previous prime is 28619957. The next prime is 28620017. The reversal of 28620016 is 61002682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28620017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5956 + ... + 9628.

Almost surely, 2^28620016 is an apocalyptic number.

It is an amenable number.

28620016 is a deficient number, since it is larger than the sum of its proper divisors (26960256).

28620016 is a wasteful number, since it uses less digits than its factorization.

28620016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168 (or 4162 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 28620016 is about 5349.7678454303. The cubic root of 28620016 is about 305.8839037281.

Adding to 28620016 its reverse (61002682), we get a palindrome (89622698).

It can be divided in two parts, 286 and 20016, that added together give a palindrome (20302).

The spelling of 28620016 in words is "twenty-eight million, six hundred twenty thousand, sixteen".