732228 has 48 divisors (see below), whose sum is σ = 2042880. Its totient is φ = 199584.

The previous prime is 732217. The next prime is 732229. The reversal of 732228 is 822237.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 732198 and 732207.

It is not an unprimeable number, because it can be changed into a prime (732229) by changing a digit.

732228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1743 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (42560).

2⁷³²²²⁸ 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 732228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021440).

732228 is an abundant number, since it is smaller than the sum of its proper divisors (1310652).

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

732228 is a wasteful number, since it uses less digits than its factorization.

732228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 414 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 732228 is about 855.7032195802. The cubic root of 732228 is about 90.1326439167.

Subtracting 732228 from its reverse (822237), we obtain a palindrome (90009).

The spelling of 732228 in words is "seven hundred thirty-two thousand, two hundred twenty-eight".