228351528 has 32 divisors (see below), whose sum is σ = 634310400. Its totient is φ = 76117104.

The previous prime is 228351493. The next prime is 228351547. The reversal of 228351528 is 825153822.

228351528 is a `hidden beast` number, since 2 + 2 + 83 + 51 + 528 = 666.

228351528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 228351492 and 228351501.

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, 528376 + ... + 528807.

It is an arithmetic number, because the mean of its divisors is an integer number (19822200).

Almost surely, 2^228351528 is an apocalyptic number.

It is an amenable number.

228351528 is an abundant number, since it is smaller than the sum of its proper divisors (405958872).

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

228351528 is a wasteful number, since it uses less digits than its factorization.

228351528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057198 (or 1057188 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 228351528 is about 15111.3046425515. The cubic root of 228351528 is about 611.2252788376.

The spelling of 228351528 in words is "two hundred twenty-eight million, three hundred fifty-one thousand, five hundred twenty-eight".