283073280 has 144 divisors (see below), whose sum is σ = 1033315584. Its totient is φ = 64696320.

The previous prime is 283073261. The next prime is 283073281. The reversal of 283073280 is 82370382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283073281) 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 15 ways as a sum of consecutive naturals, for example, 21615 + ... + 32145.

Almost surely, 2^283073280 is an apocalyptic number.

283073280 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 283073280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516657792).

283073280 is an abundant number, since it is smaller than the sum of its proper divisors (750242304).

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

283073280 is a wasteful number, since it uses less digits than its factorization.

283073280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10562 (or 10548 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 283073280 is about 16824.7817222097. The cubic root of 283073280 is about 656.5981061090.

The spelling of 283073280 in words is "two hundred eighty-three million, seventy-three thousand, two hundred eighty".