283471440 has 160 divisors (see below), whose sum is σ = 1036886016. Its totient is φ = 62691840.

The previous prime is 283471427. The next prime is 283471451. The reversal of 283471440 is 44174382.

283471440 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 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 31 ways as a sum of consecutive naturals, for example, 49359 + ... + 54801.

Almost surely, 2^283471440 is an apocalyptic number.

283471440 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 283471440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518443008).

283471440 is an abundant number, since it is smaller than the sum of its proper divisors (753414576).

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

283471440 is a wasteful number, since it uses less digits than its factorization.

283471440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5497 (or 5491 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 283471440 is about 16836.6101101142. The cubic root of 283471440 is about 656.9058104423.

The spelling of 283471440 in words is "two hundred eighty-three million, four hundred seventy-one thousand, four hundred forty".