283235220 has 144 divisors (see below), whose sum is σ = 894845952. Its totient is φ = 72437760.

The previous prime is 283235213. The next prime is 283235221. The reversal of 283235220 is 22532382.

283235220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283235221) 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 47 ways as a sum of consecutive naturals, for example, 1076809 + ... + 1077071.

It is an arithmetic number, because the mean of its divisors is an integer number (6214208).

Almost surely, 2^283235220 is an apocalyptic number.

283235220 is a gapful number since it is divisible by the number (20) 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 283235220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447422976).

283235220 is an abundant number, since it is smaller than the sum of its proper divisors (611610732).

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

283235220 is a wasteful number, since it uses less digits than its factorization.

283235220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 283235220 is about 16829.5935779804. The cubic root of 283235220 is about 656.7232906872.

The spelling of 283235220 in words is "two hundred eighty-three million, two hundred thirty-five thousand, two hundred twenty".