283930740 has 144 divisors (see below), whose sum is σ = 895265280. Its totient is φ = 72783360.

The previous prime is 283930739. The next prime is 283930747. The reversal of 283930740 is 47039382.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 283930695 and 283930704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283930747) 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 47 ways as a sum of consecutive naturals, for example, 582777 + ... + 583263.

It is an arithmetic number, because the mean of its divisors is an integer number (6217120).

Almost surely, 2^283930740 is an apocalyptic number.

283930740 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 283930740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447632640).

283930740 is an abundant number, since it is smaller than the sum of its proper divisors (611334540).

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

283930740 is a wasteful number, since it uses less digits than its factorization.

283930740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 283930740 is about 16850.2445086117. The cubic root of 283930740 is about 657.2604070477.

The spelling of 283930740 in words is "two hundred eighty-three million, nine hundred thirty thousand, seven hundred forty".