283425228 has 72 divisors (see below), whose sum is σ = 763596288. Its totient is φ = 88432608.

The previous prime is 283425221. The next prime is 283425229. The reversal of 283425228 is 822524382.

283425228 is a `hidden beast` number, since 2 + 8 + 3 + 425 + 228 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 283425192 and 283425201.

It is not an unprimeable number, because it can be changed into a prime (283425221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35275 + ... + 42557.

It is an arithmetic number, because the mean of its divisors is an integer number (10605504).

Almost surely, 2^283425228 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 283425228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381798144).

283425228 is an abundant number, since it is smaller than the sum of its proper divisors (480171060).

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

283425228 is a wasteful number, since it uses less digits than its factorization.

283425228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363 (or 7358 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 283425228 is about 16835.2376876598. The cubic root of 283425228 is about 656.8701118653.

The spelling of 283425228 in words is "two hundred eighty-three million, four hundred twenty-five thousand, two hundred twenty-eight".