283221232 has 40 divisors (see below), whose sum is σ = 634709376. Its totient is φ = 119914176.

The previous prime is 283221217. The next prime is 283221233. The reversal of 283221232 is 232122382.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 283221197 and 283221206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283221233) 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 7 ways as a sum of consecutive naturals, for example, 5938 + ... + 24529.

Almost surely, 2^283221232 is an apocalyptic number.

It is an amenable number.

283221232 is an abundant number, since it is smaller than the sum of its proper divisors (351488144).

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

283221232 is a wasteful number, since it uses less digits than its factorization.

283221232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30565 (or 30559 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 283221232 is about 16829.1779953746. The cubic root of 283221232 is about 656.7124794181.

The spelling of 283221232 in words is "two hundred eighty-three million, two hundred twenty-one thousand, two hundred thirty-two".