228910528 has 56 divisors (see below), whose sum is σ = 566342784. Its totient is φ = 89184000.

The previous prime is 228910523. The next prime is 228910529. The reversal of 228910528 is 825019822.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228910523) 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 7 ways as a sum of consecutive naturals, for example, 18298 + ... + 28153.

It is an arithmetic number, because the mean of its divisors is an integer number (10113264).

Almost surely, 2^228910528 is an apocalyptic number.

228910528 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

228910528 is an abundant number, since it is smaller than the sum of its proper divisors (337432256).

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

228910528 is a wasteful number, since it uses less digits than its factorization.

228910528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46481 (or 46471 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 228910528 is about 15129.7894235181. The cubic root of 228910528 is about 611.7236281851.

The spelling of 228910528 in words is "two hundred twenty-eight million, nine hundred ten thousand, five hundred twenty-eight".