28925568 has 192 divisors, whose sum is σ = 101200320. Its totient is φ = 7741440.

The previous prime is 28925563. The next prime is 28925579. The reversal of 28925568 is 86552982.

28925568 is a `hidden beast` number, since 2 + 8 + 92 + 556 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

Its product of digits (345600) is a multiple of the sum of its prime divisors (240).

It is not an unprimeable number, because it can be changed into a prime (28925563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136983 + ... + 137193.

It is an arithmetic number, because the mean of its divisors is an integer number (527085).

Almost surely, 2^28925568 is an apocalyptic number.

28925568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28925568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50600160).

28925568 is an abundant number, since it is smaller than the sum of its proper divisors (72274752).

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

28925568 is a wasteful number, since it uses less digits than its factorization.

28925568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 240 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 28925568 is about 5378.2495293543. The cubic root of 28925568 is about 306.9686083051.

The spelling of 28925568 in words is "twenty-eight million, nine hundred twenty-five thousand, five hundred sixty-eight".