228605532 has 24 divisors (see below), whose sum is σ = 550620672. Its totient is φ = 73743600.

The previous prime is 228605527. The next prime is 228605543. The reversal of 228605532 is 235506822.

228605532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×228605532² = 104520978522006048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228605493 and 228605502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306894 + ... + 307637.

It is an arithmetic number, because the mean of its divisors is an integer number (22942528).

Almost surely, 2^228605532 is an apocalyptic number.

It is an amenable number.

228605532 is an abundant number, since it is smaller than the sum of its proper divisors (322015140).

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

228605532 is a wasteful number, since it uses less digits than its factorization.

228605532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614569 (or 614567 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 228605532 is about 15119.7067431878. The cubic root of 228605532 is about 611.4518244882.

The spelling of 228605532 in words is "two hundred twenty-eight million, six hundred five thousand, five hundred thirty-two".