283777020 has 120 divisors (see below), whose sum is σ = 905612400. Its totient is φ = 74366208.

The previous prime is 283777019. The next prime is 283777033. The reversal of 283777020 is 20777382.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 94096 + ... + 97064.

It is an arithmetic number, because the mean of its divisors is an integer number (7546770).

Almost surely, 2^283777020 is an apocalyptic number.

283777020 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 283777020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452806200).

283777020 is an abundant number, since it is smaller than the sum of its proper divisors (621835380).

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

283777020 is a wasteful number, since it uses less digits than its factorization.

283777020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049 (or 3038 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 283777020 is about 16845.6825329222. The cubic root of 283777020 is about 657.1417721199.

The spelling of 283777020 in words is "two hundred eighty-three million, seven hundred seventy-seven thousand, twenty".