283221224 has 64 divisors (see below), whose sum is σ = 660623040. Its totient is φ = 111836160.

The previous prime is 283221217. The next prime is 283221233. The reversal of 283221224 is 422122382.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 283221193 and 283221202.

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, 12167 + ... + 26729.

It is an arithmetic number, because the mean of its divisors is an integer number (10322235).

Almost surely, 2^283221224 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 283221224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330311520).

283221224 is an abundant number, since it is smaller than the sum of its proper divisors (377401816).

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

283221224 is a wasteful number, since it uses less digits than its factorization.

283221224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14610 (or 14606 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 283221224 is about 16829.1777576921. The cubic root of 283221224 is about 656.7124732348.

The spelling of 283221224 in words is "two hundred eighty-three million, two hundred twenty-one thousand, two hundred twenty-four".