283457728 has 56 divisors (see below), whose sum is σ = 605479104. Its totient is φ = 131174400.

The previous prime is 283457717. The next prime is 283457729. The reversal of 283457728 is 827754382.

It is not an unprimeable number, because it can be changed into a prime (283457729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64233 + ... + 68503.

Almost surely, 2^283457728 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 283457728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302739552).

283457728 is an abundant number, since it is smaller than the sum of its proper divisors (322021376).

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

283457728 is a wasteful number, since it uses less digits than its factorization.

283457728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4361 (or 4351 counting only the distinct ones).

The product of its digits is 752640, while the sum is 46.

The square root of 283457728 is about 16836.2028973281. The cubic root of 283457728 is about 656.8952183844.

The spelling of 283457728 in words is "two hundred eighty-three million, four hundred fifty-seven thousand, seven hundred twenty-eight".