283780 has 24 divisors (see below), whose sum is σ = 681408. Its totient is φ = 97248.

The previous prime is 283771. The next prime is 283793. The reversal of 283780 is 87382.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 2² + 8⁴ + 7⁵ + 3⁶ + 8⁶ + 0 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (28392).

2²⁸³⁷⁸⁰ is an apocalyptic number.

283780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283780 is an abundant number, since it is smaller than the sum of its proper divisors (397628).

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

283780 is a wasteful number, since it uses less digits than its factorization.

283780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 283780 is about 532.7100524676. The cubic root of 283780 is about 65.7144072372.

The spelling of 283780 in words is "two hundred eighty-three thousand, seven hundred eighty".