228209832 has 64 divisors (see below), whose sum is σ = 636537600. Its totient is φ = 75755520.

The previous prime is 228209827. The next prime is 228209837. The reversal of 228209832 is 238902822.

It is an interprime number because it is at equal distance from previous prime (228209827) and next prime (228209837).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (228209837) 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 15 ways as a sum of consecutive naturals, for example, 53457 + ... + 57567.

It is an arithmetic number, because the mean of its divisors is an integer number (9945900).

Almost surely, 2^228209832 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 228209832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318268800).

228209832 is an abundant number, since it is smaller than the sum of its proper divisors (408327768).

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

228209832 is a wasteful number, since it uses less digits than its factorization.

228209832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383 (or 4373 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 228209832 is about 15106.6155044735. The cubic root of 228209832 is about 611.0988274580.

The spelling of 228209832 in words is "two hundred twenty-eight million, two hundred nine thousand, eight hundred thirty-two".