283080780 has 144 divisors (see below), whose sum is σ = 906220224. Its totient is φ = 71385600.

The previous prime is 283080767. The next prime is 283080797. The reversal of 283080780 is 87080382.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 417802 + ... + 418478.

It is an arithmetic number, because the mean of its divisors is an integer number (6293196).

Almost surely, 2^283080780 is an apocalyptic number.

283080780 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 283080780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453110112).

283080780 is an abundant number, since it is smaller than the sum of its proper divisors (623139444).

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

283080780 is a wasteful number, since it uses less digits than its factorization.

283080780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 283080780 is about 16825.0046062401. The cubic root of 283080780 is about 656.6039048929.

The spelling of 283080780 in words is "two hundred eighty-three million, eighty thousand, seven hundred eighty".