28055316 has 48 divisors (see below), whose sum is σ = 67737600. Its totient is φ = 9031680.

The previous prime is 28055309. The next prime is 28055317. The reversal of 28055316 is 61355082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28055317) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 62260 + ... + 62708.

It is an arithmetic number, because the mean of its divisors is an integer number (1411200).

Almost surely, 2^28055316 is an apocalyptic number.

It is an amenable number.

28055316 is an abundant number, since it is smaller than the sum of its proper divisors (39682284).

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

28055316 is a wasteful number, since it uses less digits than its factorization.

28055316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 28055316 is about 5296.7269138592. The cubic root of 28055316 is about 303.8587322629.

The spelling of 28055316 in words is "twenty-eight million, fifty-five thousand, three hundred sixteen".