228531048 has 64 divisors (see below), whose sum is σ = 588107520. Its totient is φ = 73958400.

The previous prime is 228531041. The next prime is 228531073. The reversal of 228531048 is 840135822.

It is not an unprimeable number, because it can be changed into a prime (228531041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266236 + ... + 267092.

It is an arithmetic number, because the mean of its divisors is an integer number (9189180).

Almost surely, 2^228531048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228531048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294053760).

228531048 is an abundant number, since it is smaller than the sum of its proper divisors (359576472).

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

228531048 is a wasteful number, since it uses less digits than its factorization.

228531048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 228531048 is about 15117.2433995091. The cubic root of 228531048 is about 611.3854097570.

It can be divided in two parts, 2285 and 31048, that added together give a palindrome (33333).

The spelling of 228531048 in words is "two hundred twenty-eight million, five hundred thirty-one thousand, forty-eight".