228738524 has 24 divisors (see below), whose sum is σ = 460131168. Its totient is φ = 97462080.

The previous prime is 228738487. The next prime is 228738527. The reversal of 228738524 is 425837822.

It is a happy number.

228738524 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228738527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18767 + ... + 28454.

It is an arithmetic number, because the mean of its divisors is an integer number (19172132).

Almost surely, 2^228738524 is an apocalyptic number.

It is an amenable number.

228738524 is an abundant number, since it is smaller than the sum of its proper divisors (231392644).

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

228738524 is a wasteful number, since it uses less digits than its factorization.

228738524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47405 (or 47403 counting only the distinct ones).

The product of its digits is 215040, while the sum is 41.

The square root of 228738524 is about 15124.1040726385. The cubic root of 228738524 is about 611.5703728546.

The spelling of 228738524 in words is "two hundred twenty-eight million, seven hundred thirty-eight thousand, five hundred twenty-four".