283993980 has 24 divisors (see below), whose sum is σ = 795183312. Its totient is φ = 75731712.

The previous prime is 283993951. The next prime is 283993987. The reversal of 283993980 is 89399382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283993987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2366557 + ... + 2366676.

It is an arithmetic number, because the mean of its divisors is an integer number (33132638).

Almost surely, 2^283993980 is an apocalyptic number.

283993980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283993980 is an abundant number, since it is smaller than the sum of its proper divisors (511189332).

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

283993980 is a wasteful number, since it uses less digits than its factorization.

283993980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733245 (or 4733243 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 283993980 is about 16852.1209347666. The cubic root of 283993980 is about 657.3092007108.

The spelling of 283993980 in words is "two hundred eighty-three million, nine hundred ninety-three thousand, nine hundred eighty".