28234528 has 24 divisors (see below), whose sum is σ = 63528192. Its totient is φ = 12100416.

The previous prime is 28234517. The next prime is 28234529. The reversal of 28234528 is 82543282.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28234493 and 28234502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28234529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62800 + ... + 63247.

It is an arithmetic number, because the mean of its divisors is an integer number (2647008).

Almost surely, 2^28234528 is an apocalyptic number.

28234528 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28234528 is an abundant number, since it is smaller than the sum of its proper divisors (35293664).

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

28234528 is a wasteful number, since it uses less digits than its factorization.

28234528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126064 (or 126056 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 28234528 is about 5313.6172236999. The cubic root of 28234528 is about 304.5043566810.

The spelling of 28234528 in words is "twenty-eight million, two hundred thirty-four thousand, five hundred twenty-eight".