283557248 has 128 divisors (see below), whose sum is σ = 658022400. Its totient is φ = 120637440.

The previous prime is 283557221. The next prime is 283557259. The reversal of 283557248 is 842755382.

It is a tau number, because it is divible by the number of its divisors (128).

Its product of digits (537600) is a multiple of the sum of its prime factors (320).

It is a junction number, because it is equal to n+sod(n) for n = 283557199 and 283557208.

It is a congruent number.

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, 1186313 + ... + 1186551.

It is an arithmetic number, because the mean of its divisors is an integer number (5140800).

Almost surely, 2^283557248 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 283557248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329011200).

283557248 is an abundant number, since it is smaller than the sum of its proper divisors (374465152).

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

283557248 is a wasteful number, since it uses less digits than its factorization.

283557248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 308 counting only the distinct ones).

The product of its digits is 537600, while the sum is 44.

The square root of 283557248 is about 16839.1581737330. The cubic root of 283557248 is about 656.9720864748.

The spelling of 283557248 in words is "two hundred eighty-three million, five hundred fifty-seven thousand, two hundred forty-eight".