228238032 has 80 divisors (see below), whose sum is σ = 677099520. Its totient is φ = 65520000.

The previous prime is 228237967. The next prime is 228238111. The reversal of 228238032 is 230832822.

It is a congruent number.

It is an unprimeable number.

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, 1344 + ... + 21407.

It is an arithmetic number, because the mean of its divisors is an integer number (8463744).

Almost surely, 2^228238032 is an apocalyptic number.

228238032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228238032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338549760).

228238032 is an abundant number, since it is smaller than the sum of its proper divisors (448861488).

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

228238032 is a wasteful number, since it uses less digits than its factorization.

228238032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22792 (or 22786 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 228238032 is about 15107.5488415560. The cubic root of 228238032 is about 611.1239976811.

The spelling of 228238032 in words is "two hundred twenty-eight million, two hundred thirty-eight thousand, thirty-two".